Home / 159,259.20-219,704.16-102,688.80

Finding the Fourth Proportional to 159,259.20, 219,704.16 and 102,688.80

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Solution

The fourth proportional to 159,259.20, 219,704.16 and 102,688.80 is: 141,663.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,259.20 : 219,704.16 = 102,688.80 : x
  2. Step 2: Convert to fraction form
    159,259.20/219,704.16 = 102,688.80/x
  3. Step 3: Cross multiply
    159,259.20x = 219,704.16 × 102,688.80
  4. Step 4: Simplify right side
    159,259.20x = 22,561,156,545.41
  5. Step 5: Solve for x
    x = 22,561,156,545.41/159,259.20
  6. Step 6: Final answer
    x = 141,663.13

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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.