Home / 125,877.88-173,691.14-72,153

Finding the Fourth Proportional to 125,877.88, 173,691.14 and 72,153

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Solution

The fourth proportional to 125,877.88, 173,691.14 and 72,153 is: 99,559.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,877.88 : 173,691.14 = 72,153 : x
  2. Step 2: Convert to fraction form
    125,877.88/173,691.14 = 72,153/x
  3. Step 3: Cross multiply
    125,877.88x = 173,691.14 × 72,153
  4. Step 4: Simplify right side
    125,877.88x = 12,532,336,824.42
  5. Step 5: Solve for x
    x = 12,532,336,824.42/125,877.88
  6. Step 6: Final answer
    x = 99,559.48

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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.