Home / 159,337.38-219,885.48-87,717.10

Finding the Fourth Proportional to 159,337.38, 219,885.48 and 87,717.10

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Solution

The fourth proportional to 159,337.38, 219,885.48 and 87,717.10 is: 121,049.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,337.38 : 219,885.48 = 87,717.10 : x
  2. Step 2: Convert to fraction form
    159,337.38/219,885.48 = 87,717.10/x
  3. Step 3: Cross multiply
    159,337.38x = 219,885.48 × 87,717.10
  4. Step 4: Simplify right side
    159,337.38x = 19,287,716,637.71
  5. Step 5: Solve for x
    x = 19,287,716,637.71/159,337.38
  6. Step 6: Final answer
    x = 121,049.54

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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.