Home / 124,987.14-172,481.58-68,398.38

Finding the Fourth Proportional to 124,987.14, 172,481.58 and 68,398.38

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Solution

The fourth proportional to 124,987.14, 172,481.58 and 68,398.38 is: 94,389.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,987.14 : 172,481.58 = 68,398.38 : x
  2. Step 2: Convert to fraction form
    124,987.14/172,481.58 = 68,398.38/x
  3. Step 3: Cross multiply
    124,987.14x = 172,481.58 × 68,398.38
  4. Step 4: Simplify right side
    124,987.14x = 11,797,460,651.84
  5. Step 5: Solve for x
    x = 11,797,460,651.84/124,987.14
  6. Step 6: Final answer
    x = 94,389.40

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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.