Home / 149,144.29-205,823.44-81,165.65

Finding the Fourth Proportional to 149,144.29, 205,823.44 and 81,165.65

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Solution

The fourth proportional to 149,144.29, 205,823.44 and 81,165.65 is: 112,010.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,144.29 : 205,823.44 = 81,165.65 : x
  2. Step 2: Convert to fraction form
    149,144.29/205,823.44 = 81,165.65/x
  3. Step 3: Cross multiply
    149,144.29x = 205,823.44 × 81,165.65
  4. Step 4: Simplify right side
    149,144.29x = 16,705,793,292.84
  5. Step 5: Solve for x
    x = 16,705,793,292.84/149,144.29
  6. Step 6: Final answer
    x = 112,010.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.