Home / 105,391.41-158,149.49-38,878.29

Finding the Fourth Proportional to 105,391.41, 158,149.49 and 38,878.29

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Solution

The fourth proportional to 105,391.41, 158,149.49 and 38,878.29 is: 58,340.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,391.41 : 158,149.49 = 38,878.29 : x
  2. Step 2: Convert to fraction form
    105,391.41/158,149.49 = 38,878.29/x
  3. Step 3: Cross multiply
    105,391.41x = 158,149.49 × 38,878.29
  4. Step 4: Simplify right side
    105,391.41x = 6,148,581,541.18
  5. Step 5: Solve for x
    x = 6,148,581,541.18/105,391.41
  6. Step 6: Final answer
    x = 58,340.44

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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.