Home / 136,867.86-205,309.07-43,380.90

Finding the Fourth Proportional to 136,867.86, 205,309.07 and 43,380.90

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Solution

The fourth proportional to 136,867.86, 205,309.07 and 43,380.90 is: 65,073.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,867.86 : 205,309.07 = 43,380.90 : x
  2. Step 2: Convert to fraction form
    136,867.86/205,309.07 = 43,380.90/x
  3. Step 3: Cross multiply
    136,867.86x = 205,309.07 × 43,380.90
  4. Step 4: Simplify right side
    136,867.86x = 8,906,492,234.76
  5. Step 5: Solve for x
    x = 8,906,492,234.76/136,867.86
  6. Step 6: Final answer
    x = 65,073.66

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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.