Home / 100,738.10-151,107.15-89,851.70

Finding the Fourth Proportional to 100,738.10, 151,107.15 and 89,851.70

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Solution

The fourth proportional to 100,738.10, 151,107.15 and 89,851.70 is: 134,777.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,738.10 : 151,107.15 = 89,851.70 : x
  2. Step 2: Convert to fraction form
    100,738.10/151,107.15 = 89,851.70/x
  3. Step 3: Cross multiply
    100,738.10x = 151,107.15 × 89,851.70
  4. Step 4: Simplify right side
    100,738.10x = 13,577,234,309.66
  5. Step 5: Solve for x
    x = 13,577,234,309.66/100,738.10
  6. Step 6: Final answer
    x = 134,777.55

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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.