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Finding the Fourth Proportional to 161,306.72, 222,592.82 and 89,684.90

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Solution

The fourth proportional to 161,306.72, 222,592.82 and 89,684.90 is: 123,759.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,306.72 : 222,592.82 = 89,684.90 : x
  2. Step 2: Convert to fraction form
    161,306.72/222,592.82 = 89,684.90/x
  3. Step 3: Cross multiply
    161,306.72x = 222,592.82 × 89,684.90
  4. Step 4: Simplify right side
    161,306.72x = 19,963,214,802.42
  5. Step 5: Solve for x
    x = 19,963,214,802.42/161,306.72
  6. Step 6: Final answer
    x = 123,759.35

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1.5x scale

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.