Home / 170,721.22-235,553.95-109,439.43

Finding the Fourth Proportional to 170,721.22, 235,553.95 and 109,439.43

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Solution

The fourth proportional to 170,721.22, 235,553.95 and 109,439.43 is: 150,999.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,721.22 : 235,553.95 = 109,439.43 : x
  2. Step 2: Convert to fraction form
    170,721.22/235,553.95 = 109,439.43/x
  3. Step 3: Cross multiply
    170,721.22x = 235,553.95 × 109,439.43
  4. Step 4: Simplify right side
    170,721.22x = 25,778,890,022.25
  5. Step 5: Solve for x
    x = 25,778,890,022.25/170,721.22
  6. Step 6: Final answer
    x = 150,999.92

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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.