Home / 124,732.96-172,131.60-68,145.28

Finding the Fourth Proportional to 124,732.96, 172,131.60 and 68,145.28

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Solution

The fourth proportional to 124,732.96, 172,131.60 and 68,145.28 is: 94,040.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,732.96 : 172,131.60 = 68,145.28 : x
  2. Step 2: Convert to fraction form
    124,732.96/172,131.60 = 68,145.28/x
  3. Step 3: Cross multiply
    124,732.96x = 172,131.60 × 68,145.28
  4. Step 4: Simplify right side
    124,732.96x = 11,729,956,078.85
  5. Step 5: Solve for x
    x = 11,729,956,078.85/124,732.96
  6. Step 6: Final answer
    x = 94,040.55

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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.