Home / 80,111.24-120,167.12-30,177.92

Finding the Fourth Proportional to 80,111.24, 120,167.12 and 30,177.92

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Solution

The fourth proportional to 80,111.24, 120,167.12 and 30,177.92 is: 45,266.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,111.24 : 120,167.12 = 30,177.92 : x
  2. Step 2: Convert to fraction form
    80,111.24/120,167.12 = 30,177.92/x
  3. Step 3: Cross multiply
    80,111.24x = 120,167.12 × 30,177.92
  4. Step 4: Simplify right side
    80,111.24x = 3,626,393,733.99
  5. Step 5: Solve for x
    x = 3,626,393,733.99/80,111.24
  6. Step 6: Final answer
    x = 45,266.98

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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.