Home / 149,294.37-206,026.41-81,311.46

Finding the Fourth Proportional to 149,294.37, 206,026.41 and 81,311.46

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Solution

The fourth proportional to 149,294.37, 206,026.41 and 81,311.46 is: 112,209.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,294.37 : 206,026.41 = 81,311.46 : x
  2. Step 2: Convert to fraction form
    149,294.37/206,026.41 = 81,311.46/x
  3. Step 3: Cross multiply
    149,294.37x = 206,026.41 × 81,311.46
  4. Step 4: Simplify right side
    149,294.37x = 16,752,308,195.66
  5. Step 5: Solve for x
    x = 16,752,308,195.66/149,294.37
  6. Step 6: Final answer
    x = 112,209.91

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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.