Home / 156,657.13-216,187.11-85,037.20

Finding the Fourth Proportional to 156,657.13, 216,187.11 and 85,037.20

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Solution

The fourth proportional to 156,657.13, 216,187.11 and 85,037.20 is: 117,351.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,657.13 : 216,187.11 = 85,037.20 : x
  2. Step 2: Convert to fraction form
    156,657.13/216,187.11 = 85,037.20/x
  3. Step 3: Cross multiply
    156,657.13x = 216,187.11 × 85,037.20
  4. Step 4: Simplify right side
    156,657.13x = 18,383,945,970.02
  5. Step 5: Solve for x
    x = 18,383,945,970.02/156,657.13
  6. Step 6: Final answer
    x = 117,351.48

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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.