Home / 119,154.43-178,772.60-74,729.17

Finding the Fourth Proportional to 119,154.43, 178,772.60 and 74,729.17

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Solution

The fourth proportional to 119,154.43, 178,772.60 and 74,729.17 is: 112,119.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,154.43 : 178,772.60 = 74,729.17 : x
  2. Step 2: Convert to fraction form
    119,154.43/178,772.60 = 74,729.17/x
  3. Step 3: Cross multiply
    119,154.43x = 178,772.60 × 74,729.17
  4. Step 4: Simplify right side
    119,154.43x = 13,359,527,196.16
  5. Step 5: Solve for x
    x = 13,359,527,196.16/119,154.43
  6. Step 6: Final answer
    x = 112,119.44

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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.