Home / 123,265.90-170,107.62-68,820.53

Finding the Fourth Proportional to 123,265.90, 170,107.62 and 68,820.53

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Solution

The fourth proportional to 123,265.90, 170,107.62 and 68,820.53 is: 94,972.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,265.90 : 170,107.62 = 68,820.53 : x
  2. Step 2: Convert to fraction form
    123,265.90/170,107.62 = 68,820.53/x
  3. Step 3: Cross multiply
    123,265.90x = 170,107.62 × 68,820.53
  4. Step 4: Simplify right side
    123,265.90x = 11,706,896,565.44
  5. Step 5: Solve for x
    x = 11,706,896,565.44/123,265.90
  6. Step 6: Final answer
    x = 94,972.71

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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.