Home / 161,713.20-242,569.80-157,105.20

Finding the Fourth Proportional to 161,713.20, 242,569.80 and 157,105.20

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Solution

The fourth proportional to 161,713.20, 242,569.80 and 157,105.20 is: 235,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,713.20 : 242,569.80 = 157,105.20 : x
  2. Step 2: Convert to fraction form
    161,713.20/242,569.80 = 157,105.20/x
  3. Step 3: Cross multiply
    161,713.20x = 242,569.80 × 157,105.20
  4. Step 4: Simplify right side
    161,713.20x = 38,108,976,942.96
  5. Step 5: Solve for x
    x = 38,108,976,942.96/161,713.20
  6. Step 6: Final answer
    x = 235,657.80

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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.