Home / 156,788.80-216,367.68-85,168.24

Finding the Fourth Proportional to 156,788.80, 216,367.68 and 85,168.24

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Solution

The fourth proportional to 156,788.80, 216,367.68 and 85,168.24 is: 117,531.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,788.80 : 216,367.68 = 85,168.24 : x
  2. Step 2: Convert to fraction form
    156,788.80/216,367.68 = 85,168.24/x
  3. Step 3: Cross multiply
    156,788.80x = 216,367.68 × 85,168.24
  4. Step 4: Simplify right side
    156,788.80x = 18,427,654,498.48
  5. Step 5: Solve for x
    x = 18,427,654,498.48/156,788.80
  6. Step 6: Final answer
    x = 117,531.70

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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.