Home / 123,335.62-170,203.16-66,747

Finding the Fourth Proportional to 123,335.62, 170,203.16 and 66,747

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Solution

The fourth proportional to 123,335.62, 170,203.16 and 66,747 is: 92,110.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,335.62 : 170,203.16 = 66,747 : x
  2. Step 2: Convert to fraction form
    123,335.62/170,203.16 = 66,747/x
  3. Step 3: Cross multiply
    123,335.62x = 170,203.16 × 66,747
  4. Step 4: Simplify right side
    123,335.62x = 11,360,550,320.52
  5. Step 5: Solve for x
    x = 11,360,550,320.52/123,335.62
  6. Step 6: Final answer
    x = 92,110.86

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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.