Home / 123,348.17-185,087.09-87,555.61

Finding the Fourth Proportional to 123,348.17, 185,087.09 and 87,555.61

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Solution

The fourth proportional to 123,348.17, 185,087.09 and 87,555.61 is: 131,379.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,348.17 : 185,087.09 = 87,555.61 : x
  2. Step 2: Convert to fraction form
    123,348.17/185,087.09 = 87,555.61/x
  3. Step 3: Cross multiply
    123,348.17x = 185,087.09 × 87,555.61
  4. Step 4: Simplify right side
    123,348.17x = 16,205,412,997.77
  5. Step 5: Solve for x
    x = 16,205,412,997.77/123,348.17
  6. Step 6: Final answer
    x = 131,379.44

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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.