Home / 105,391.91-158,150.24-38,878.79

Finding the Fourth Proportional to 105,391.91, 158,150.24 and 38,878.79

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Solution

The fourth proportional to 105,391.91, 158,150.24 and 38,878.79 is: 58,341.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,391.91 : 158,150.24 = 38,878.79 : x
  2. Step 2: Convert to fraction form
    105,391.91/158,150.24 = 38,878.79/x
  3. Step 3: Cross multiply
    105,391.91x = 158,150.24 × 38,878.79
  4. Step 4: Simplify right side
    105,391.91x = 6,148,689,969.41
  5. Step 5: Solve for x
    x = 6,148,689,969.41/105,391.91
  6. Step 6: Final answer
    x = 58,341.19

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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.