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Finding the Fourth Proportional to 503,135.67, 754,703.51 and 129,158.67

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Solution

The fourth proportional to 503,135.67, 754,703.51 and 129,158.67 is: 193,738.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,135.67 : 754,703.51 = 129,158.67 : x
  2. Step 2: Convert to fraction form
    503,135.67/754,703.51 = 129,158.67/x
  3. Step 3: Cross multiply
    503,135.67x = 754,703.51 × 129,158.67
  4. Step 4: Simplify right side
    503,135.67x = 97,476,500,950.14
  5. Step 5: Solve for x
    x = 97,476,500,950.14/503,135.67
  6. Step 6: Final answer
    x = 193,738.01

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.