Home / 143,937.66-198,634.32-80,279.58

Finding the Fourth Proportional to 143,937.66, 198,634.32 and 80,279.58

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Solution

The fourth proportional to 143,937.66, 198,634.32 and 80,279.58 is: 110,786.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,937.66 : 198,634.32 = 80,279.58 : x
  2. Step 2: Convert to fraction form
    143,937.66/198,634.32 = 80,279.58/x
  3. Step 3: Cross multiply
    143,937.66x = 198,634.32 × 80,279.58
  4. Step 4: Simplify right side
    143,937.66x = 15,946,279,783.19
  5. Step 5: Solve for x
    x = 15,946,279,783.19/143,937.66
  6. Step 6: Final answer
    x = 110,786.02

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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.