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Finding the Fourth Proportional to 134,656, 185,824.28 and 74,226.70

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Solution

The fourth proportional to 134,656, 185,824.28 and 74,226.70 is: 102,432.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,656 : 185,824.28 = 74,226.70 : x
  2. Step 2: Convert to fraction form
    134,656/185,824.28 = 74,226.70/x
  3. Step 3: Cross multiply
    134,656x = 185,824.28 × 74,226.70
  4. Step 4: Simplify right side
    134,656x = 13,793,123,084.28
  5. Step 5: Solve for x
    x = 13,793,123,084.28/134,656
  6. Step 6: Final answer
    x = 102,432.29

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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.