Home / 146,738.10-220,107.15-76,754.10

Finding the Fourth Proportional to 146,738.10, 220,107.15 and 76,754.10

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Solution

The fourth proportional to 146,738.10, 220,107.15 and 76,754.10 is: 115,131.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,738.10 : 220,107.15 = 76,754.10 : x
  2. Step 2: Convert to fraction form
    146,738.10/220,107.15 = 76,754.10/x
  3. Step 3: Cross multiply
    146,738.10x = 220,107.15 × 76,754.10
  4. Step 4: Simplify right side
    146,738.10x = 16,894,126,201.82
  5. Step 5: Solve for x
    x = 16,894,126,201.82/146,738.10
  6. Step 6: Final answer
    x = 115,131.15

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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.