Home / 105,418.41-158,189.99-38,904.86

Finding the Fourth Proportional to 105,418.41, 158,189.99 and 38,904.86

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Solution

The fourth proportional to 105,418.41, 158,189.99 and 38,904.86 is: 58,380.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,418.41 : 158,189.99 = 38,904.86 : x
  2. Step 2: Convert to fraction form
    105,418.41/158,189.99 = 38,904.86/x
  3. Step 3: Cross multiply
    105,418.41x = 158,189.99 × 38,904.86
  4. Step 4: Simplify right side
    105,418.41x = 6,154,359,414.35
  5. Step 5: Solve for x
    x = 6,154,359,414.35/105,418.41
  6. Step 6: Final answer
    x = 58,380.31

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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.