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Finding the Fourth Proportional to 158,480.98, 218,727.84 and 101,145.04

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Solution

The fourth proportional to 158,480.98, 218,727.84 and 101,145.04 is: 139,595.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,480.98 : 218,727.84 = 101,145.04 : x
  2. Step 2: Convert to fraction form
    158,480.98/218,727.84 = 101,145.04/x
  3. Step 3: Cross multiply
    158,480.98x = 218,727.84 × 101,145.04
  4. Step 4: Simplify right side
    158,480.98x = 22,123,236,125.91
  5. Step 5: Solve for x
    x = 22,123,236,125.91/158,480.98
  6. Step 6: Final answer
    x = 139,595.53

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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.