Home / 102,507.08-141,459.54-57,794.76

Finding the Fourth Proportional to 102,507.08, 141,459.54 and 57,794.76

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Solution

The fourth proportional to 102,507.08, 141,459.54 and 57,794.76 is: 79,756.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,507.08 : 141,459.54 = 57,794.76 : x
  2. Step 2: Convert to fraction form
    102,507.08/141,459.54 = 57,794.76/x
  3. Step 3: Cross multiply
    102,507.08x = 141,459.54 × 57,794.76
  4. Step 4: Simplify right side
    102,507.08x = 8,175,620,164.01
  5. Step 5: Solve for x
    x = 8,175,620,164.01/102,507.08
  6. Step 6: Final answer
    x = 79,756.64

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Double scale
Find fourth proportional to 102,508.08, 141,460.92 and 57,795.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.