Home / 113,129.62-169,624.68-38,242.69

Finding the Fourth Proportional to 113,129.62, 169,624.68 and 38,242.69

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Solution

The fourth proportional to 113,129.62, 169,624.68 and 38,242.69 is: 57,340.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,129.62 : 169,624.68 = 38,242.69 : x
  2. Step 2: Convert to fraction form
    113,129.62/169,624.68 = 38,242.69/x
  3. Step 3: Cross multiply
    113,129.62x = 169,624.68 × 38,242.69
  4. Step 4: Simplify right side
    113,129.62x = 6,486,904,053.59
  5. Step 5: Solve for x
    x = 6,486,904,053.59/113,129.62
  6. Step 6: Final answer
    x = 57,340.46

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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.