Home / 124,786.28-172,204.65-68,197.64

Finding the Fourth Proportional to 124,786.28, 172,204.65 and 68,197.64

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Solution

The fourth proportional to 124,786.28, 172,204.65 and 68,197.64 is: 94,112.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,786.28 : 172,204.65 = 68,197.64 : x
  2. Step 2: Convert to fraction form
    124,786.28/172,204.65 = 68,197.64/x
  3. Step 3: Cross multiply
    124,786.28x = 172,204.65 × 68,197.64
  4. Step 4: Simplify right side
    124,786.28x = 11,743,950,727.03
  5. Step 5: Solve for x
    x = 11,743,950,727.03/124,786.28
  6. Step 6: Final answer
    x = 94,112.52

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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.