Home / 123,334.62-170,201.78-66,746

Finding the Fourth Proportional to 123,334.62, 170,201.78 and 66,746

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Solution

The fourth proportional to 123,334.62, 170,201.78 and 66,746 is: 92,109.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,334.62 : 170,201.78 = 66,746 : x
  2. Step 2: Convert to fraction form
    123,334.62/170,201.78 = 66,746/x
  3. Step 3: Cross multiply
    123,334.62x = 170,201.78 × 66,746
  4. Step 4: Simplify right side
    123,334.62x = 11,360,288,007.88
  5. Step 5: Solve for x
    x = 11,360,288,007.88/123,334.62
  6. Step 6: Final answer
    x = 92,109.48

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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.