Home / 120,179.75-180,255.85-31,441.82

Finding the Fourth Proportional to 120,179.75, 180,255.85 and 31,441.82

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Solution

The fourth proportional to 120,179.75, 180,255.85 and 31,441.82 is: 47,159.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,179.75 : 180,255.85 = 31,441.82 : x
  2. Step 2: Convert to fraction form
    120,179.75/180,255.85 = 31,441.82/x
  3. Step 3: Cross multiply
    120,179.75x = 180,255.85 × 31,441.82
  4. Step 4: Simplify right side
    120,179.75x = 5,667,571,989.65
  5. Step 5: Solve for x
    x = 5,667,571,989.65/120,179.75
  6. Step 6: Final answer
    x = 47,159.13

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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.