Home / 124,695.76-172,081.04-68,107.12

Finding the Fourth Proportional to 124,695.76, 172,081.04 and 68,107.12

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Solution

The fourth proportional to 124,695.76, 172,081.04 and 68,107.12 is: 93,988.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,695.76 : 172,081.04 = 68,107.12 : x
  2. Step 2: Convert to fraction form
    124,695.76/172,081.04 = 68,107.12/x
  3. Step 3: Cross multiply
    124,695.76x = 172,081.04 × 68,107.12
  4. Step 4: Simplify right side
    124,695.76x = 11,719,944,041.00
  5. Step 5: Solve for x
    x = 11,719,944,041.00/124,695.76
  6. Step 6: Final answer
    x = 93,988.31

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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.