Home / 156,744.32-216,305.11-85,124.80

Finding the Fourth Proportional to 156,744.32, 216,305.11 and 85,124.80

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Solution

The fourth proportional to 156,744.32, 216,305.11 and 85,124.80 is: 117,471.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,744.32 : 216,305.11 = 85,124.80 : x
  2. Step 2: Convert to fraction form
    156,744.32/216,305.11 = 85,124.80/x
  3. Step 3: Cross multiply
    156,744.32x = 216,305.11 × 85,124.80
  4. Step 4: Simplify right side
    156,744.32x = 18,412,929,227.73
  5. Step 5: Solve for x
    x = 18,412,929,227.73/156,744.32
  6. Step 6: Final answer
    x = 117,471.11

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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.