Home / 101,781.12-152,559.90-42,654.36

Finding the Fourth Proportional to 101,781.12, 152,559.90 and 42,654.36

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Solution

The fourth proportional to 101,781.12, 152,559.90 and 42,654.36 is: 63,934.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,781.12 : 152,559.90 = 42,654.36 : x
  2. Step 2: Convert to fraction form
    101,781.12/152,559.90 = 42,654.36/x
  3. Step 3: Cross multiply
    101,781.12x = 152,559.90 × 42,654.36
  4. Step 4: Simplify right side
    101,781.12x = 6,507,344,896.16
  5. Step 5: Solve for x
    x = 6,507,344,896.16/101,781.12
  6. Step 6: Final answer
    x = 63,934.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.