Home / 87,837.93-131,888.12-86,525.73

Finding the Fourth Proportional to 87,837.93, 131,888.12 and 86,525.73

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Solution

The fourth proportional to 87,837.93, 131,888.12 and 86,525.73 is: 129,917.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,837.93 : 131,888.12 = 86,525.73 : x
  2. Step 2: Convert to fraction form
    87,837.93/131,888.12 = 86,525.73/x
  3. Step 3: Cross multiply
    87,837.93x = 131,888.12 × 86,525.73
  4. Step 4: Simplify right side
    87,837.93x = 11,411,715,428.70
  5. Step 5: Solve for x
    x = 11,411,715,428.70/87,837.93
  6. Step 6: Final answer
    x = 129,917.85

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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.