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Finding the Fourth Proportional to 145,167.93, 217,753.11 and 39,992.67

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Solution

The fourth proportional to 145,167.93, 217,753.11 and 39,992.67 is: 59,989.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,167.93 : 217,753.11 = 39,992.67 : x
  2. Step 2: Convert to fraction form
    145,167.93/217,753.11 = 39,992.67/x
  3. Step 3: Cross multiply
    145,167.93x = 217,753.11 × 39,992.67
  4. Step 4: Simplify right side
    145,167.93x = 8,708,528,269.70
  5. Step 5: Solve for x
    x = 8,708,528,269.70/145,167.93
  6. Step 6: Final answer
    x = 59,989.34

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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.