Home / 125,891.28-173,759.52-72,175.32

Finding the Fourth Proportional to 125,891.28, 173,759.52 and 72,175.32

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Solution

The fourth proportional to 125,891.28, 173,759.52 and 72,175.32 is: 99,618.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,891.28 : 173,759.52 = 72,175.32 : x
  2. Step 2: Convert to fraction form
    125,891.28/173,759.52 = 72,175.32/x
  3. Step 3: Cross multiply
    125,891.28x = 173,759.52 × 72,175.32
  4. Step 4: Simplify right side
    125,891.28x = 12,541,148,959.05
  5. Step 5: Solve for x
    x = 12,541,148,959.05/125,891.28
  6. Step 6: Final answer
    x = 99,618.89

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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.