Home / 100,306.80-138,419.24-59,996.76

Finding the Fourth Proportional to 100,306.80, 138,419.24 and 59,996.76

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Solution

The fourth proportional to 100,306.80, 138,419.24 and 59,996.76 is: 82,793.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,306.80 : 138,419.24 = 59,996.76 : x
  2. Step 2: Convert to fraction form
    100,306.80/138,419.24 = 59,996.76/x
  3. Step 3: Cross multiply
    100,306.80x = 138,419.24 × 59,996.76
  4. Step 4: Simplify right side
    100,306.80x = 8,304,705,921.66
  5. Step 5: Solve for x
    x = 8,304,705,921.66/100,306.80
  6. Step 6: Final answer
    x = 82,793.05

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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.