Home / 156,625.28-216,144.96-85,006.16

Finding the Fourth Proportional to 156,625.28, 216,144.96 and 85,006.16

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Solution

The fourth proportional to 156,625.28, 216,144.96 and 85,006.16 is: 117,309.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,625.28 : 216,144.96 = 85,006.16 : x
  2. Step 2: Convert to fraction form
    156,625.28/216,144.96 = 85,006.16/x
  3. Step 3: Cross multiply
    156,625.28x = 216,144.96 × 85,006.16
  4. Step 4: Simplify right side
    156,625.28x = 18,373,653,052.95
  5. Step 5: Solve for x
    x = 18,373,653,052.95/156,625.28
  6. Step 6: Final answer
    x = 117,309.63

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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.