Home / 159,209.28-219,559.68-98,789.76

Finding the Fourth Proportional to 159,209.28, 219,559.68 and 98,789.76

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Solution

The fourth proportional to 159,209.28, 219,559.68 and 98,789.76 is: 136,237.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,209.28 : 219,559.68 = 98,789.76 : x
  2. Step 2: Convert to fraction form
    159,209.28/219,559.68 = 98,789.76/x
  3. Step 3: Cross multiply
    159,209.28x = 219,559.68 × 98,789.76
  4. Step 4: Simplify right side
    159,209.28x = 21,690,248,092.88
  5. Step 5: Solve for x
    x = 21,690,248,092.88/159,209.28
  6. Step 6: Final answer
    x = 136,237.34

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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.