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Finding the Fourth Proportional to 149,660.80, 224,491.20 and 120,136.30

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Solution

The fourth proportional to 149,660.80, 224,491.20 and 120,136.30 is: 180,204.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,660.80 : 224,491.20 = 120,136.30 : x
  2. Step 2: Convert to fraction form
    149,660.80/224,491.20 = 120,136.30/x
  3. Step 3: Cross multiply
    149,660.80x = 224,491.20 × 120,136.30
  4. Step 4: Simplify right side
    149,660.80x = 26,969,542,150.56
  5. Step 5: Solve for x
    x = 26,969,542,150.56/149,660.80
  6. Step 6: Final answer
    x = 180,204.45

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1.5x scale

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.