Home / 120,033.85-180,089.22-84,047.78

Finding the Fourth Proportional to 120,033.85, 180,089.22 and 84,047.78

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Solution

The fourth proportional to 120,033.85, 180,089.22 and 84,047.78 is: 126,098.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,033.85 : 180,089.22 = 84,047.78 : x
  2. Step 2: Convert to fraction form
    120,033.85/180,089.22 = 84,047.78/x
  3. Step 3: Cross multiply
    120,033.85x = 180,089.22 × 84,047.78
  4. Step 4: Simplify right side
    120,033.85x = 15,136,098,895.33
  5. Step 5: Solve for x
    x = 15,136,098,895.33/120,033.85
  6. Step 6: Final answer
    x = 126,098.59

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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.