Home / 125,296.20-172,913.40-71,587.80

Finding the Fourth Proportional to 125,296.20, 172,913.40 and 71,587.80

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Solution

The fourth proportional to 125,296.20, 172,913.40 and 71,587.80 is: 98,793.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,296.20 : 172,913.40 = 71,587.80 : x
  2. Step 2: Convert to fraction form
    125,296.20/172,913.40 = 71,587.80/x
  3. Step 3: Cross multiply
    125,296.20x = 172,913.40 × 71,587.80
  4. Step 4: Simplify right side
    125,296.20x = 12,378,489,896.52
  5. Step 5: Solve for x
    x = 12,378,489,896.52/125,296.20
  6. Step 6: Final answer
    x = 98,793.82

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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.