Home / 156,930.06-216,560.92-85,311.88

Finding the Fourth Proportional to 156,930.06, 216,560.92 and 85,311.88

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Solution

The fourth proportional to 156,930.06, 216,560.92 and 85,311.88 is: 117,729.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,930.06 : 216,560.92 = 85,311.88 : x
  2. Step 2: Convert to fraction form
    156,930.06/216,560.92 = 85,311.88/x
  3. Step 3: Cross multiply
    156,930.06x = 216,560.92 × 85,311.88
  4. Step 4: Simplify right side
    156,930.06x = 18,475,219,219.73
  5. Step 5: Solve for x
    x = 18,475,219,219.73/156,930.06
  6. Step 6: Final answer
    x = 117,729.00

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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.