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Finding the Fourth Proportional to 122,972.96, 169,700.88 and 69,258.08

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Solution

The fourth proportional to 122,972.96, 169,700.88 and 69,258.08 is: 95,575.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,972.96 : 169,700.88 = 69,258.08 : x
  2. Step 2: Convert to fraction form
    122,972.96/169,700.88 = 69,258.08/x
  3. Step 3: Cross multiply
    122,972.96x = 169,700.88 × 69,258.08
  4. Step 4: Simplify right side
    122,972.96x = 11,753,157,123.11
  5. Step 5: Solve for x
    x = 11,753,157,123.11/122,972.96
  6. Step 6: Final answer
    x = 95,575.13

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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.