Home / 161,831.11-223,422.61-143,876.42

Finding the Fourth Proportional to 161,831.11, 223,422.61 and 143,876.42

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Solution

The fourth proportional to 161,831.11, 223,422.61 and 143,876.42 is: 198,634.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,831.11 : 223,422.61 = 143,876.42 : x
  2. Step 2: Convert to fraction form
    161,831.11/223,422.61 = 143,876.42/x
  3. Step 3: Cross multiply
    161,831.11x = 223,422.61 × 143,876.42
  4. Step 4: Simplify right side
    161,831.11x = 32,145,245,273.86
  5. Step 5: Solve for x
    x = 32,145,245,273.86/161,831.11
  6. Step 6: Final answer
    x = 198,634.52

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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.