Home / 140,212.00-209,982.71-80,867.76

Finding the Fourth Proportional to 140,212.00, 209,982.71 and 80,867.76

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Solution

The fourth proportional to 140,212.00, 209,982.71 and 80,867.76 is: 121,108.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,212.00 : 209,982.71 = 80,867.76 : x
  2. Step 2: Convert to fraction form
    140,212.00/209,982.71 = 80,867.76/x
  3. Step 3: Cross multiply
    140,212.00x = 209,982.71 × 80,867.76
  4. Step 4: Simplify right side
    140,212.00x = 16,980,830,811.16
  5. Step 5: Solve for x
    x = 16,980,830,811.16/140,212.00
  6. Step 6: Final answer
    x = 121,108.26

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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.