Home / 131,985.35-182,092.05-86,687.87

Finding the Fourth Proportional to 131,985.35, 182,092.05 and 86,687.87

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Solution

The fourth proportional to 131,985.35, 182,092.05 and 86,687.87 is: 119,597.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,985.35 : 182,092.05 = 86,687.87 : x
  2. Step 2: Convert to fraction form
    131,985.35/182,092.05 = 86,687.87/x
  3. Step 3: Cross multiply
    131,985.35x = 182,092.05 × 86,687.87
  4. Step 4: Simplify right side
    131,985.35x = 15,785,172,072.24
  5. Step 5: Solve for x
    x = 15,785,172,072.24/131,985.35
  6. Step 6: Final answer
    x = 119,597.91

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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.