Home / 123,761.49-185,612.48-57,137.61

Finding the Fourth Proportional to 123,761.49, 185,612.48 and 57,137.61

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Solution

The fourth proportional to 123,761.49, 185,612.48 and 57,137.61 is: 85,692.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,761.49 : 185,612.48 = 57,137.61 : x
  2. Step 2: Convert to fraction form
    123,761.49/185,612.48 = 57,137.61/x
  3. Step 3: Cross multiply
    123,761.49x = 185,612.48 × 57,137.61
  4. Step 4: Simplify right side
    123,761.49x = 10,605,453,207.68
  5. Step 5: Solve for x
    x = 10,605,453,207.68/123,761.49
  6. Step 6: Final answer
    x = 85,692.68

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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.