Home / 134,909.46-186,174-74,480.04

Finding the Fourth Proportional to 134,909.46, 186,174 and 74,480.04

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Solution

The fourth proportional to 134,909.46, 186,174 and 74,480.04 is: 102,781.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,909.46 : 186,174 = 74,480.04 : x
  2. Step 2: Convert to fraction form
    134,909.46/186,174 = 74,480.04/x
  3. Step 3: Cross multiply
    134,909.46x = 186,174 × 74,480.04
  4. Step 4: Simplify right side
    134,909.46x = 13,866,246,966.96
  5. Step 5: Solve for x
    x = 13,866,246,966.96/134,909.46
  6. Step 6: Final answer
    x = 102,781.87

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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.