Home / 180,002.10-270,003.15-120,515.70

Finding the Fourth Proportional to 180,002.10, 270,003.15 and 120,515.70

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Solution

The fourth proportional to 180,002.10, 270,003.15 and 120,515.70 is: 180,773.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,002.10 : 270,003.15 = 120,515.70 : x
  2. Step 2: Convert to fraction form
    180,002.10/270,003.15 = 120,515.70/x
  3. Step 3: Cross multiply
    180,002.10x = 270,003.15 × 120,515.70
  4. Step 4: Simplify right side
    180,002.10x = 32,539,618,624.46
  5. Step 5: Solve for x
    x = 32,539,618,624.46/180,002.10
  6. Step 6: Final answer
    x = 180,773.55

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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.