Home / 149,720.40-224,062.20-137,278.80

Finding the Fourth Proportional to 149,720.40, 224,062.20 and 137,278.80

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Solution

The fourth proportional to 149,720.40, 224,062.20 and 137,278.80 is: 205,442.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,720.40 : 224,062.20 = 137,278.80 : x
  2. Step 2: Convert to fraction form
    149,720.40/224,062.20 = 137,278.80/x
  3. Step 3: Cross multiply
    149,720.40x = 224,062.20 × 137,278.80
  4. Step 4: Simplify right side
    149,720.40x = 30,758,989,941.36
  5. Step 5: Solve for x
    x = 30,758,989,941.36/149,720.40
  6. Step 6: Final answer
    x = 205,442.88

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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.