Home / 156,738.64-216,301.83-88,753.78

Finding the Fourth Proportional to 156,738.64, 216,301.83 and 88,753.78

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Solution

The fourth proportional to 156,738.64, 216,301.83 and 88,753.78 is: 122,481.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,738.64 : 216,301.83 = 88,753.78 : x
  2. Step 2: Convert to fraction form
    156,738.64/216,301.83 = 88,753.78/x
  3. Step 3: Cross multiply
    156,738.64x = 216,301.83 × 88,753.78
  4. Step 4: Simplify right side
    156,738.64x = 19,197,605,033.42
  5. Step 5: Solve for x
    x = 19,197,605,033.42/156,738.64
  6. Step 6: Final answer
    x = 122,481.64

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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.