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Finding the Fourth Proportional to 136,767.96, 188,839.78 and 88,398.52

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Solution

The fourth proportional to 136,767.96, 188,839.78 and 88,398.52 is: 122,054.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,767.96 : 188,839.78 = 88,398.52 : x
  2. Step 2: Convert to fraction form
    136,767.96/188,839.78 = 88,398.52/x
  3. Step 3: Cross multiply
    136,767.96x = 188,839.78 × 88,398.52
  4. Step 4: Simplify right side
    136,767.96x = 16,693,156,376.03
  5. Step 5: Solve for x
    x = 16,693,156,376.03/136,767.96
  6. Step 6: Final answer
    x = 122,054.58

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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.