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Finding the Fourth Proportional to 125,956, 173,818.32 and 75,003.68

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Solution

The fourth proportional to 125,956, 173,818.32 and 75,003.68 is: 103,504.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,956 : 173,818.32 = 75,003.68 : x
  2. Step 2: Convert to fraction form
    125,956/173,818.32 = 75,003.68/x
  3. Step 3: Cross multiply
    125,956x = 173,818.32 × 75,003.68
  4. Step 4: Simplify right side
    125,956x = 13,037,013,651.42
  5. Step 5: Solve for x
    x = 13,037,013,651.42/125,956
  6. Step 6: Final answer
    x = 103,504.51

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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.