Home / 110,969.22-153,340.38-79,082.76

Finding the Fourth Proportional to 110,969.22, 153,340.38 and 79,082.76

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Solution

The fourth proportional to 110,969.22, 153,340.38 and 79,082.76 is: 109,278.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,969.22 : 153,340.38 = 79,082.76 : x
  2. Step 2: Convert to fraction form
    110,969.22/153,340.38 = 79,082.76/x
  3. Step 3: Cross multiply
    110,969.22x = 153,340.38 × 79,082.76
  4. Step 4: Simplify right side
    110,969.22x = 12,126,580,469.85
  5. Step 5: Solve for x
    x = 12,126,580,469.85/110,969.22
  6. Step 6: Final answer
    x = 109,278.78

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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.