Home / 159,077.25-219,520.98-87,456.78

Finding the Fourth Proportional to 159,077.25, 219,520.98 and 87,456.78

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Solution

The fourth proportional to 159,077.25, 219,520.98 and 87,456.78 is: 120,687.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,077.25 : 219,520.98 = 87,456.78 : x
  2. Step 2: Convert to fraction form
    159,077.25/219,520.98 = 87,456.78/x
  3. Step 3: Cross multiply
    159,077.25x = 219,520.98 × 87,456.78
  4. Step 4: Simplify right side
    159,077.25x = 19,198,598,053.24
  5. Step 5: Solve for x
    x = 19,198,598,053.24/159,077.25
  6. Step 6: Final answer
    x = 120,687.26

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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.