Home / 161,923.40-242,812.20-73,131.20

Finding the Fourth Proportional to 161,923.40, 242,812.20 and 73,131.20

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Solution

The fourth proportional to 161,923.40, 242,812.20 and 73,131.20 is: 109,663.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,923.40 : 242,812.20 = 73,131.20 : x
  2. Step 2: Convert to fraction form
    161,923.40/242,812.20 = 73,131.20/x
  3. Step 3: Cross multiply
    161,923.40x = 242,812.20 × 73,131.20
  4. Step 4: Simplify right side
    161,923.40x = 17,757,147,560.64
  5. Step 5: Solve for x
    x = 17,757,147,560.64/161,923.40
  6. Step 6: Final answer
    x = 109,663.88

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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.