Home / 120,179.43-180,255.38-31,441.50

Finding the Fourth Proportional to 120,179.43, 180,255.38 and 31,441.50

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Solution

The fourth proportional to 120,179.43, 180,255.38 and 31,441.50 is: 47,158.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,179.43 : 180,255.38 = 31,441.50 : x
  2. Step 2: Convert to fraction form
    120,179.43/180,255.38 = 31,441.50/x
  3. Step 3: Cross multiply
    120,179.43x = 180,255.38 × 31,441.50
  4. Step 4: Simplify right side
    120,179.43x = 5,667,500,225.88
  5. Step 5: Solve for x
    x = 5,667,500,225.88/120,179.43
  6. Step 6: Final answer
    x = 47,158.65

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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.