Home / 159,077.20-219,524.56-87,456.58

Finding the Fourth Proportional to 159,077.20, 219,524.56 and 87,456.58

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Solution

The fourth proportional to 159,077.20, 219,524.56 and 87,456.58 is: 120,688.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,077.20 : 219,524.56 = 87,456.58 : x
  2. Step 2: Convert to fraction form
    159,077.20/219,524.56 = 87,456.58/x
  3. Step 3: Cross multiply
    159,077.20x = 219,524.56 × 87,456.58
  4. Step 4: Simplify right side
    159,077.20x = 19,198,867,243.60
  5. Step 5: Solve for x
    x = 19,198,867,243.60/159,077.20
  6. Step 6: Final answer
    x = 120,688.99

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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.