Home / 120,275.12-180,393.08-40,348.46

Finding the Fourth Proportional to 120,275.12, 180,393.08 and 40,348.46

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Solution

The fourth proportional to 120,275.12, 180,393.08 and 40,348.46 is: 60,516.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,275.12 : 180,393.08 = 40,348.46 : x
  2. Step 2: Convert to fraction form
    120,275.12/180,393.08 = 40,348.46/x
  3. Step 3: Cross multiply
    120,275.12x = 180,393.08 × 40,348.46
  4. Step 4: Simplify right side
    120,275.12x = 7,278,581,868.95
  5. Step 5: Solve for x
    x = 7,278,581,868.95/120,275.12
  6. Step 6: Final answer
    x = 60,516.11

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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.