Home / 156,763.60-216,330.22-85,142.09

Finding the Fourth Proportional to 156,763.60, 216,330.22 and 85,142.09

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Solution

The fourth proportional to 156,763.60, 216,330.22 and 85,142.09 is: 117,494.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,763.60 : 216,330.22 = 85,142.09 : x
  2. Step 2: Convert to fraction form
    156,763.60/216,330.22 = 85,142.09/x
  3. Step 3: Cross multiply
    156,763.60x = 216,330.22 × 85,142.09
  4. Step 4: Simplify right side
    156,763.60x = 18,418,806,251.89
  5. Step 5: Solve for x
    x = 18,418,806,251.89/156,763.60
  6. Step 6: Final answer
    x = 117,494.15

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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.