Home / 99,650.08-137,517.04-57,211.20

Finding the Fourth Proportional to 99,650.08, 137,517.04 and 57,211.20

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Solution

The fourth proportional to 99,650.08, 137,517.04 and 57,211.20 is: 78,951.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,650.08 : 137,517.04 = 57,211.20 : x
  2. Step 2: Convert to fraction form
    99,650.08/137,517.04 = 57,211.20/x
  3. Step 3: Cross multiply
    99,650.08x = 137,517.04 × 57,211.20
  4. Step 4: Simplify right side
    99,650.08x = 7,867,514,878.85
  5. Step 5: Solve for x
    x = 7,867,514,878.85/99,650.08
  6. Step 6: Final answer
    x = 78,951.42

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1.5x scale

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.