Home / 159,074.80-219,523.36-87,456.04

Finding the Fourth Proportional to 159,074.80, 219,523.36 and 87,456.04

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Solution

The fourth proportional to 159,074.80, 219,523.36 and 87,456.04 is: 120,689.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,074.80 : 219,523.36 = 87,456.04 : x
  2. Step 2: Convert to fraction form
    159,074.80/219,523.36 = 87,456.04/x
  3. Step 3: Cross multiply
    159,074.80x = 219,523.36 × 87,456.04
  4. Step 4: Simplify right side
    159,074.80x = 19,198,643,753.09
  5. Step 5: Solve for x
    x = 19,198,643,753.09/159,074.80
  6. Step 6: Final answer
    x = 120,689.41

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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.