Home / 185,572.18-278,685.33-138,200.14

Finding the Fourth Proportional to 185,572.18, 278,685.33 and 138,200.14

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Solution

The fourth proportional to 185,572.18, 278,685.33 and 138,200.14 is: 207,543.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,572.18 : 278,685.33 = 138,200.14 : x
  2. Step 2: Convert to fraction form
    185,572.18/278,685.33 = 138,200.14/x
  3. Step 3: Cross multiply
    185,572.18x = 278,685.33 × 138,200.14
  4. Step 4: Simplify right side
    185,572.18x = 38,514,351,621.95
  5. Step 5: Solve for x
    x = 38,514,351,621.95/185,572.18
  6. Step 6: Final answer
    x = 207,543.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.