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Finding the Fourth Proportional to 158,337.83, 218,452 and 90,305.91

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Solution

The fourth proportional to 158,337.83, 218,452 and 90,305.91 is: 124,591.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,337.83 : 218,452 = 90,305.91 : x
  2. Step 2: Convert to fraction form
    158,337.83/218,452 = 90,305.91/x
  3. Step 3: Cross multiply
    158,337.83x = 218,452 × 90,305.91
  4. Step 4: Simplify right side
    158,337.83x = 19,727,506,651.32
  5. Step 5: Solve for x
    x = 19,727,506,651.32/158,337.83
  6. Step 6: Final answer
    x = 124,591.24

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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.