Home / 156,932.10-216,561.60-85,310.28

Finding the Fourth Proportional to 156,932.10, 216,561.60 and 85,310.28

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Solution

The fourth proportional to 156,932.10, 216,561.60 and 85,310.28 is: 117,725.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,932.10 : 216,561.60 = 85,310.28 : x
  2. Step 2: Convert to fraction form
    156,932.10/216,561.60 = 85,310.28/x
  3. Step 3: Cross multiply
    156,932.10x = 216,561.60 × 85,310.28
  4. Step 4: Simplify right side
    156,932.10x = 18,474,930,733.25
  5. Step 5: Solve for x
    x = 18,474,930,733.25/156,932.10
  6. Step 6: Final answer
    x = 117,725.63

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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.