Home / 185,572.31-278,685.52-138,200.27

Finding the Fourth Proportional to 185,572.31, 278,685.52 and 138,200.27

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Solution

The fourth proportional to 185,572.31, 278,685.52 and 138,200.27 is: 207,543.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,572.31 : 278,685.52 = 138,200.27 : x
  2. Step 2: Convert to fraction form
    185,572.31/278,685.52 = 138,200.27/x
  3. Step 3: Cross multiply
    185,572.31x = 278,685.52 × 138,200.27
  4. Step 4: Simplify right side
    185,572.31x = 38,514,412,370.16
  5. Step 5: Solve for x
    x = 38,514,412,370.16/185,572.31
  6. Step 6: Final answer
    x = 207,543.97

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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.