Home / 163,142.10-225,138.29-91,517.85

Finding the Fourth Proportional to 163,142.10, 225,138.29 and 91,517.85

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Solution

The fourth proportional to 163,142.10, 225,138.29 and 91,517.85 is: 126,295.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,142.10 : 225,138.29 = 91,517.85 : x
  2. Step 2: Convert to fraction form
    163,142.10/225,138.29 = 91,517.85/x
  3. Step 3: Cross multiply
    163,142.10x = 225,138.29 × 91,517.85
  4. Step 4: Simplify right side
    163,142.10x = 20,604,171,795.89
  5. Step 5: Solve for x
    x = 20,604,171,795.89/163,142.10
  6. Step 6: Final answer
    x = 126,295.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.