Home / 143,207.10-197,581.32-82,755.72

Finding the Fourth Proportional to 143,207.10, 197,581.32 and 82,755.72

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Solution

The fourth proportional to 143,207.10, 197,581.32 and 82,755.72 is: 114,177.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,207.10 : 197,581.32 = 82,755.72 : x
  2. Step 2: Convert to fraction form
    143,207.10/197,581.32 = 82,755.72/x
  3. Step 3: Cross multiply
    143,207.10x = 197,581.32 × 82,755.72
  4. Step 4: Simplify right side
    143,207.10x = 16,350,984,395.15
  5. Step 5: Solve for x
    x = 16,350,984,395.15/143,207.10
  6. Step 6: Final answer
    x = 114,177.19

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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.