Home / 120,767.28-181,150.80-79,204.56

Finding the Fourth Proportional to 120,767.28, 181,150.80 and 79,204.56

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Solution

The fourth proportional to 120,767.28, 181,150.80 and 79,204.56 is: 118,806.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,767.28 : 181,150.80 = 79,204.56 : x
  2. Step 2: Convert to fraction form
    120,767.28/181,150.80 = 79,204.56/x
  3. Step 3: Cross multiply
    120,767.28x = 181,150.80 × 79,204.56
  4. Step 4: Simplify right side
    120,767.28x = 14,347,969,407.65
  5. Step 5: Solve for x
    x = 14,347,969,407.65/120,767.28
  6. Step 6: Final answer
    x = 118,806.76

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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.