Home / 154,422.20-231,341.70-79,286.60

Finding the Fourth Proportional to 154,422.20, 231,341.70 and 79,286.60

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Solution

The fourth proportional to 154,422.20, 231,341.70 and 79,286.60 is: 118,780.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,422.20 : 231,341.70 = 79,286.60 : x
  2. Step 2: Convert to fraction form
    154,422.20/231,341.70 = 79,286.60/x
  3. Step 3: Cross multiply
    154,422.20x = 231,341.70 × 79,286.60
  4. Step 4: Simplify right side
    154,422.20x = 18,342,296,831.22
  5. Step 5: Solve for x
    x = 18,342,296,831.22/154,422.20
  6. Step 6: Final answer
    x = 118,780.18

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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.