Home / 115,375.28-159,219.96-67,663.04

Finding the Fourth Proportional to 115,375.28, 159,219.96 and 67,663.04

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Solution

The fourth proportional to 115,375.28, 159,219.96 and 67,663.04 is: 93,376.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,375.28 : 159,219.96 = 67,663.04 : x
  2. Step 2: Convert to fraction form
    115,375.28/159,219.96 = 67,663.04/x
  3. Step 3: Cross multiply
    115,375.28x = 159,219.96 × 67,663.04
  4. Step 4: Simplify right side
    115,375.28x = 10,773,306,522.28
  5. Step 5: Solve for x
    x = 10,773,306,522.28/115,375.28
  6. Step 6: Final answer
    x = 93,376.21

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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.