Home / 120,391.56-180,452.88-106,385.04

Finding the Fourth Proportional to 120,391.56, 180,452.88 and 106,385.04

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Solution

The fourth proportional to 120,391.56, 180,452.88 and 106,385.04 is: 159,458.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,391.56 : 180,452.88 = 106,385.04 : x
  2. Step 2: Convert to fraction form
    120,391.56/180,452.88 = 106,385.04/x
  3. Step 3: Cross multiply
    120,391.56x = 180,452.88 × 106,385.04
  4. Step 4: Simplify right side
    120,391.56x = 19,197,486,856.92
  5. Step 5: Solve for x
    x = 19,197,486,856.92/120,391.56
  6. Step 6: Final answer
    x = 159,458.74

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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.