Home / 159,331.08-219,884.79-87,710.34

Finding the Fourth Proportional to 159,331.08, 219,884.79 and 87,710.34

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Solution

The fourth proportional to 159,331.08, 219,884.79 and 87,710.34 is: 121,044.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,331.08 : 219,884.79 = 87,710.34 : x
  2. Step 2: Convert to fraction form
    159,331.08/219,884.79 = 87,710.34/x
  3. Step 3: Cross multiply
    159,331.08x = 219,884.79 × 87,710.34
  4. Step 4: Simplify right side
    159,331.08x = 19,286,169,691.73
  5. Step 5: Solve for x
    x = 19,286,169,691.73/159,331.08
  6. Step 6: Final answer
    x = 121,044.62

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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.