Home / 125,931.38-173,821.94-100,614.02

Finding the Fourth Proportional to 125,931.38, 173,821.94 and 100,614.02

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Solution

The fourth proportional to 125,931.38, 173,821.94 and 100,614.02 is: 138,876.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,931.38 : 173,821.94 = 100,614.02 : x
  2. Step 2: Convert to fraction form
    125,931.38/173,821.94 = 100,614.02/x
  3. Step 3: Cross multiply
    125,931.38x = 173,821.94 × 100,614.02
  4. Step 4: Simplify right side
    125,931.38x = 17,488,922,775.42
  5. Step 5: Solve for x
    x = 17,488,922,775.42/125,931.38
  6. Step 6: Final answer
    x = 138,876.61

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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.