Home / 109,144.11-163,778.94-45,959.25

Finding the Fourth Proportional to 109,144.11, 163,778.94 and 45,959.25

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Solution

The fourth proportional to 109,144.11, 163,778.94 and 45,959.25 is: 68,965.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,144.11 : 163,778.94 = 45,959.25 : x
  2. Step 2: Convert to fraction form
    109,144.11/163,778.94 = 45,959.25/x
  3. Step 3: Cross multiply
    109,144.11x = 163,778.94 × 45,959.25
  4. Step 4: Simplify right side
    109,144.11x = 7,527,157,248.20
  5. Step 5: Solve for x
    x = 7,527,157,248.20/109,144.11
  6. Step 6: Final answer
    x = 68,965.31

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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.