Home / 140,211.94-209,982.62-80,867.70

Finding the Fourth Proportional to 140,211.94, 209,982.62 and 80,867.70

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Solution

The fourth proportional to 140,211.94, 209,982.62 and 80,867.70 is: 121,108.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,211.94 : 209,982.62 = 80,867.70 : x
  2. Step 2: Convert to fraction form
    140,211.94/209,982.62 = 80,867.70/x
  3. Step 3: Cross multiply
    140,211.94x = 209,982.62 × 80,867.70
  4. Step 4: Simplify right side
    140,211.94x = 16,980,810,469.46
  5. Step 5: Solve for x
    x = 16,980,810,469.46/140,211.94
  6. Step 6: Final answer
    x = 121,108.16

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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.