Home / 136,016.64-203,851.68-76,885.20

Finding the Fourth Proportional to 136,016.64, 203,851.68 and 76,885.20

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Solution

The fourth proportional to 136,016.64, 203,851.68 and 76,885.20 is: 115,229.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,016.64 : 203,851.68 = 76,885.20 : x
  2. Step 2: Convert to fraction form
    136,016.64/203,851.68 = 76,885.20/x
  3. Step 3: Cross multiply
    136,016.64x = 203,851.68 × 76,885.20
  4. Step 4: Simplify right side
    136,016.64x = 15,673,177,187.14
  5. Step 5: Solve for x
    x = 15,673,177,187.14/136,016.64
  6. Step 6: Final answer
    x = 115,229.85

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1.5x scale

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.