Home / 143,632.85-197,785.31-140,446.49

Finding the Fourth Proportional to 143,632.85, 197,785.31 and 140,446.49

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Solution

The fourth proportional to 143,632.85, 197,785.31 and 140,446.49 is: 193,397.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,632.85 : 197,785.31 = 140,446.49 : x
  2. Step 2: Convert to fraction form
    143,632.85/197,785.31 = 140,446.49/x
  3. Step 3: Cross multiply
    143,632.85x = 197,785.31 × 140,446.49
  4. Step 4: Simplify right side
    143,632.85x = 27,778,250,871.90
  5. Step 5: Solve for x
    x = 27,778,250,871.90/143,632.85
  6. Step 6: Final answer
    x = 193,397.62

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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.