Home / 120,310.80-180,393.11-60,269.45

Finding the Fourth Proportional to 120,310.80, 180,393.11 and 60,269.45

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Solution

The fourth proportional to 120,310.80, 180,393.11 and 60,269.45 is: 90,367.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,310.80 : 180,393.11 = 60,269.45 : x
  2. Step 2: Convert to fraction form
    120,310.80/180,393.11 = 60,269.45/x
  3. Step 3: Cross multiply
    120,310.80x = 180,393.11 × 60,269.45
  4. Step 4: Simplify right side
    120,310.80x = 10,872,192,546.19
  5. Step 5: Solve for x
    x = 10,872,192,546.19/120,310.80
  6. Step 6: Final answer
    x = 90,367.56

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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.