Home / 105,444.20-158,228.12-38,930.70

Finding the Fourth Proportional to 105,444.20, 158,228.12 and 38,930.70

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Solution

The fourth proportional to 105,444.20, 158,228.12 and 38,930.70 is: 58,418.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,444.20 : 158,228.12 = 38,930.70 : x
  2. Step 2: Convert to fraction form
    105,444.20/158,228.12 = 38,930.70/x
  3. Step 3: Cross multiply
    105,444.20x = 158,228.12 × 38,930.70
  4. Step 4: Simplify right side
    105,444.20x = 6,159,932,161.97
  5. Step 5: Solve for x
    x = 6,159,932,161.97/105,444.20
  6. Step 6: Final answer
    x = 58,418.88

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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.