Home / 143,042.85-214,705.52-107,380.17

Finding the Fourth Proportional to 143,042.85, 214,705.52 and 107,380.17

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Solution

The fourth proportional to 143,042.85, 214,705.52 and 107,380.17 is: 161,176.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,042.85 : 214,705.52 = 107,380.17 : x
  2. Step 2: Convert to fraction form
    143,042.85/214,705.52 = 107,380.17/x
  3. Step 3: Cross multiply
    143,042.85x = 214,705.52 × 107,380.17
  4. Step 4: Simplify right side
    143,042.85x = 23,055,114,700.64
  5. Step 5: Solve for x
    x = 23,055,114,700.64/143,042.85
  6. Step 6: Final answer
    x = 161,176.28

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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.