Home / 149,722.40-224,065.20-137,280.80

Finding the Fourth Proportional to 149,722.40, 224,065.20 and 137,280.80

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Solution

The fourth proportional to 149,722.40, 224,065.20 and 137,280.80 is: 205,445.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,722.40 : 224,065.20 = 137,280.80 : x
  2. Step 2: Convert to fraction form
    149,722.40/224,065.20 = 137,280.80/x
  3. Step 3: Cross multiply
    149,722.40x = 224,065.20 × 137,280.80
  4. Step 4: Simplify right side
    149,722.40x = 30,759,849,908.16
  5. Step 5: Solve for x
    x = 30,759,849,908.16/149,722.40
  6. Step 6: Final answer
    x = 205,445.88

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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.