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Finding the Fourth Proportional to 123,335.90, 170,204.06 and 66,747.27

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Solution

The fourth proportional to 123,335.90, 170,204.06 and 66,747.27 is: 92,111.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,335.90 : 170,204.06 = 66,747.27 : x
  2. Step 2: Convert to fraction form
    123,335.90/170,204.06 = 66,747.27/x
  3. Step 3: Cross multiply
    123,335.90x = 170,204.06 × 66,747.27
  4. Step 4: Simplify right side
    123,335.90x = 11,360,656,014.18
  5. Step 5: Solve for x
    x = 11,360,656,014.18/123,335.90
  6. Step 6: Final answer
    x = 92,111.51

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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.