Home / 123,761.60-185,612.66-57,137.74

Finding the Fourth Proportional to 123,761.60, 185,612.66 and 57,137.74

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Solution

The fourth proportional to 123,761.60, 185,612.66 and 57,137.74 is: 85,692.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,761.60 : 185,612.66 = 57,137.74 : x
  2. Step 2: Convert to fraction form
    123,761.60/185,612.66 = 57,137.74/x
  3. Step 3: Cross multiply
    123,761.60x = 185,612.66 × 57,137.74
  4. Step 4: Simplify right side
    123,761.60x = 10,605,487,907.79
  5. Step 5: Solve for x
    x = 10,605,487,907.79/123,761.60
  6. Step 6: Final answer
    x = 85,692.88

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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.