Home / 156,000.80-234,001.20-137,921.60

Finding the Fourth Proportional to 156,000.80, 234,001.20 and 137,921.60

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Solution

The fourth proportional to 156,000.80, 234,001.20 and 137,921.60 is: 206,882.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,000.80 : 234,001.20 = 137,921.60 : x
  2. Step 2: Convert to fraction form
    156,000.80/234,001.20 = 137,921.60/x
  3. Step 3: Cross multiply
    156,000.80x = 234,001.20 × 137,921.60
  4. Step 4: Simplify right side
    156,000.80x = 32,273,819,905.92
  5. Step 5: Solve for x
    x = 32,273,819,905.92/156,000.80
  6. Step 6: Final answer
    x = 206,882.40

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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.