Home / 321,191.84-481,831.98-107,976.29

Finding the Fourth Proportional to 321,191.84, 481,831.98 and 107,976.29

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Solution

The fourth proportional to 321,191.84, 481,831.98 and 107,976.29 is: 161,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,191.84 : 481,831.98 = 107,976.29 : x
  2. Step 2: Convert to fraction form
    321,191.84/481,831.98 = 107,976.29/x
  3. Step 3: Cross multiply
    321,191.84x = 481,831.98 × 107,976.29
  4. Step 4: Simplify right side
    321,191.84x = 52,026,427,194.59
  5. Step 5: Solve for x
    x = 52,026,427,194.59/321,191.84
  6. Step 6: Final answer
    x = 161,979.30

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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.