Home / 149,178.46-205,867.13-81,195.27

Finding the Fourth Proportional to 149,178.46, 205,867.13 and 81,195.27

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Solution

The fourth proportional to 149,178.46, 205,867.13 and 81,195.27 is: 112,049.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,178.46 : 205,867.13 = 81,195.27 : x
  2. Step 2: Convert to fraction form
    149,178.46/205,867.13 = 81,195.27/x
  3. Step 3: Cross multiply
    149,178.46x = 205,867.13 × 81,195.27
  4. Step 4: Simplify right side
    149,178.46x = 16,715,437,204.48
  5. Step 5: Solve for x
    x = 16,715,437,204.48/149,178.46
  6. Step 6: Final answer
    x = 112,049.94

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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.