Home / 120,311.08-180,440.22-40,360.24

Finding the Fourth Proportional to 120,311.08, 180,440.22 and 40,360.24

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Solution

The fourth proportional to 120,311.08, 180,440.22 and 40,360.24 is: 60,531.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,311.08 : 180,440.22 = 40,360.24 : x
  2. Step 2: Convert to fraction form
    120,311.08/180,440.22 = 40,360.24/x
  3. Step 3: Cross multiply
    120,311.08x = 180,440.22 × 40,360.24
  4. Step 4: Simplify right side
    120,311.08x = 7,282,610,584.85
  5. Step 5: Solve for x
    x = 7,282,610,584.85/120,311.08
  6. Step 6: Final answer
    x = 60,531.50

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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.