Home / 156,691.27-216,234.39-85,071.61

Finding the Fourth Proportional to 156,691.27, 216,234.39 and 85,071.61

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Solution

The fourth proportional to 156,691.27, 216,234.39 and 85,071.61 is: 117,399.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,691.27 : 216,234.39 = 85,071.61 : x
  2. Step 2: Convert to fraction form
    156,691.27/216,234.39 = 85,071.61/x
  3. Step 3: Cross multiply
    156,691.27x = 216,234.39 × 85,071.61
  4. Step 4: Simplify right side
    156,691.27x = 18,395,407,694.67
  5. Step 5: Solve for x
    x = 18,395,407,694.67/156,691.27
  6. Step 6: Final answer
    x = 117,399.06

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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.