Home / 129,447.92-194,171.68-40,709.16

Finding the Fourth Proportional to 129,447.92, 194,171.68 and 40,709.16

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Solution

The fourth proportional to 129,447.92, 194,171.68 and 40,709.16 is: 61,063.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,447.92 : 194,171.68 = 40,709.16 : x
  2. Step 2: Convert to fraction form
    129,447.92/194,171.68 = 40,709.16/x
  3. Step 3: Cross multiply
    129,447.92x = 194,171.68 × 40,709.16
  4. Step 4: Simplify right side
    129,447.92x = 7,904,565,988.59
  5. Step 5: Solve for x
    x = 7,904,565,988.59/129,447.92
  6. Step 6: Final answer
    x = 61,063.68

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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.