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Finding the Fourth Proportional to 158,616.75, 218,888.13 and 89,705.29

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Solution

The fourth proportional to 158,616.75, 218,888.13 and 89,705.29 is: 123,791.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,616.75 : 218,888.13 = 89,705.29 : x
  2. Step 2: Convert to fraction form
    158,616.75/218,888.13 = 89,705.29/x
  3. Step 3: Cross multiply
    158,616.75x = 218,888.13 × 89,705.29
  4. Step 4: Simplify right side
    158,616.75x = 19,635,423,179.21
  5. Step 5: Solve for x
    x = 19,635,423,179.21/158,616.75
  6. Step 6: Final answer
    x = 123,791.61

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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.