Home / 124,716.56-172,112.64-68,131.58

Finding the Fourth Proportional to 124,716.56, 172,112.64 and 68,131.58

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Solution

The fourth proportional to 124,716.56, 172,112.64 and 68,131.58 is: 94,023.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,716.56 : 172,112.64 = 68,131.58 : x
  2. Step 2: Convert to fraction form
    124,716.56/172,112.64 = 68,131.58/x
  3. Step 3: Cross multiply
    124,716.56x = 172,112.64 × 68,131.58
  4. Step 4: Simplify right side
    124,716.56x = 11,726,306,531.45
  5. Step 5: Solve for x
    x = 11,726,306,531.45/124,716.56
  6. Step 6: Final answer
    x = 94,023.65

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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.