Home / 87,926.80-131,890.20-84,087.40

Finding the Fourth Proportional to 87,926.80, 131,890.20 and 84,087.40

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Solution

The fourth proportional to 87,926.80, 131,890.20 and 84,087.40 is: 126,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,926.80 : 131,890.20 = 84,087.40 : x
  2. Step 2: Convert to fraction form
    87,926.80/131,890.20 = 84,087.40/x
  3. Step 3: Cross multiply
    87,926.80x = 131,890.20 × 84,087.40
  4. Step 4: Simplify right side
    87,926.80x = 11,090,304,003.48
  5. Step 5: Solve for x
    x = 11,090,304,003.48/87,926.80
  6. Step 6: Final answer
    x = 126,131.10

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1.5x scale

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.