Home / 120,470.13-180,584.87-80,522.75

Finding the Fourth Proportional to 120,470.13, 180,584.87 and 80,522.75

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Solution

The fourth proportional to 120,470.13, 180,584.87 and 80,522.75 is: 120,703.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,470.13 : 180,584.87 = 80,522.75 : x
  2. Step 2: Convert to fraction form
    120,470.13/180,584.87 = 80,522.75/x
  3. Step 3: Cross multiply
    120,470.13x = 180,584.87 × 80,522.75
  4. Step 4: Simplify right side
    120,470.13x = 14,541,189,035.25
  5. Step 5: Solve for x
    x = 14,541,189,035.25/120,470.13
  6. Step 6: Final answer
    x = 120,703.69

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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.