Home / 156,921.32-235,199.46-72,504.20

Finding the Fourth Proportional to 156,921.32, 235,199.46 and 72,504.20

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Solution

The fourth proportional to 156,921.32, 235,199.46 and 72,504.20 is: 108,671.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,921.32 : 235,199.46 = 72,504.20 : x
  2. Step 2: Convert to fraction form
    156,921.32/235,199.46 = 72,504.20/x
  3. Step 3: Cross multiply
    156,921.32x = 235,199.46 × 72,504.20
  4. Step 4: Simplify right side
    156,921.32x = 17,052,948,687.73
  5. Step 5: Solve for x
    x = 17,052,948,687.73/156,921.32
  6. Step 6: Final answer
    x = 108,671.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.