Home / 109,132.80-150,586.74-61,397.88

Finding the Fourth Proportional to 109,132.80, 150,586.74 and 61,397.88

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Solution

The fourth proportional to 109,132.80, 150,586.74 and 61,397.88 is: 84,719.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,132.80 : 150,586.74 = 61,397.88 : x
  2. Step 2: Convert to fraction form
    109,132.80/150,586.74 = 61,397.88/x
  3. Step 3: Cross multiply
    109,132.80x = 150,586.74 × 61,397.88
  4. Step 4: Simplify right side
    109,132.80x = 9,245,706,592.11
  5. Step 5: Solve for x
    x = 9,245,706,592.11/109,132.80
  6. Step 6: Final answer
    x = 84,719.78

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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.