Home / 179,428.20-269,144.38-76,831.72

Finding the Fourth Proportional to 179,428.20, 269,144.38 and 76,831.72

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Solution

The fourth proportional to 179,428.20, 269,144.38 and 76,831.72 is: 115,248.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,428.20 : 269,144.38 = 76,831.72 : x
  2. Step 2: Convert to fraction form
    179,428.20/269,144.38 = 76,831.72/x
  3. Step 3: Cross multiply
    179,428.20x = 269,144.38 × 76,831.72
  4. Step 4: Simplify right side
    179,428.20x = 20,678,825,643.73
  5. Step 5: Solve for x
    x = 20,678,825,643.73/179,428.20
  6. Step 6: Final answer
    x = 115,248.47

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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.