Home / 125,123.14-172,672.17-68,530.87

Finding the Fourth Proportional to 125,123.14, 172,672.17 and 68,530.87

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Solution

The fourth proportional to 125,123.14, 172,672.17 and 68,530.87 is: 94,573.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,123.14 : 172,672.17 = 68,530.87 : x
  2. Step 2: Convert to fraction form
    125,123.14/172,672.17 = 68,530.87/x
  3. Step 3: Cross multiply
    125,123.14x = 172,672.17 × 68,530.87
  4. Step 4: Simplify right side
    125,123.14x = 11,833,373,171.53
  5. Step 5: Solve for x
    x = 11,833,373,171.53/125,123.14
  6. Step 6: Final answer
    x = 94,573.82

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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.