Home / 154,549.52-231,824.28-84,390.56

Finding the Fourth Proportional to 154,549.52, 231,824.28 and 84,390.56

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Solution

The fourth proportional to 154,549.52, 231,824.28 and 84,390.56 is: 126,585.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,549.52 : 231,824.28 = 84,390.56 : x
  2. Step 2: Convert to fraction form
    154,549.52/231,824.28 = 84,390.56/x
  3. Step 3: Cross multiply
    154,549.52x = 231,824.28 × 84,390.56
  4. Step 4: Simplify right side
    154,549.52x = 19,563,780,810.80
  5. Step 5: Solve for x
    x = 19,563,780,810.80/154,549.52
  6. Step 6: Final answer
    x = 126,585.84

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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.