Home / 156,520.86-215,660.79-106,132.38

Finding the Fourth Proportional to 156,520.86, 215,660.79 and 106,132.38

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Solution

The fourth proportional to 156,520.86, 215,660.79 and 106,132.38 is: 146,233.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,520.86 : 215,660.79 = 106,132.38 : x
  2. Step 2: Convert to fraction form
    156,520.86/215,660.79 = 106,132.38/x
  3. Step 3: Cross multiply
    156,520.86x = 215,660.79 × 106,132.38
  4. Step 4: Simplify right side
    156,520.86x = 22,888,592,915.38
  5. Step 5: Solve for x
    x = 22,888,592,915.38/156,520.86
  6. Step 6: Final answer
    x = 146,233.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.