Home / 161,721.10-242,581.65-102,672.10

Finding the Fourth Proportional to 161,721.10, 242,581.65 and 102,672.10

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Solution

The fourth proportional to 161,721.10, 242,581.65 and 102,672.10 is: 154,008.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,721.10 : 242,581.65 = 102,672.10 : x
  2. Step 2: Convert to fraction form
    161,721.10/242,581.65 = 102,672.10/x
  3. Step 3: Cross multiply
    161,721.10x = 242,581.65 × 102,672.10
  4. Step 4: Simplify right side
    161,721.10x = 24,906,367,426.97
  5. Step 5: Solve for x
    x = 24,906,367,426.97/161,721.10
  6. Step 6: Final answer
    x = 154,008.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.