Home / 124,723.14-172,109.88-68,134.47

Finding the Fourth Proportional to 124,723.14, 172,109.88 and 68,134.47

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Solution

The fourth proportional to 124,723.14, 172,109.88 and 68,134.47 is: 94,021.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,723.14 : 172,109.88 = 68,134.47 : x
  2. Step 2: Convert to fraction form
    124,723.14/172,109.88 = 68,134.47/x
  3. Step 3: Cross multiply
    124,723.14x = 172,109.88 × 68,134.47
  4. Step 4: Simplify right side
    124,723.14x = 11,726,615,455.56
  5. Step 5: Solve for x
    x = 11,726,615,455.56/124,723.14
  6. Step 6: Final answer
    x = 94,021.17

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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.