Home / 127,383.33-175,744.11-76,412.61

Finding the Fourth Proportional to 127,383.33, 175,744.11 and 76,412.61

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Solution

The fourth proportional to 127,383.33, 175,744.11 and 76,412.61 is: 105,422.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,383.33 : 175,744.11 = 76,412.61 : x
  2. Step 2: Convert to fraction form
    127,383.33/175,744.11 = 76,412.61/x
  3. Step 3: Cross multiply
    127,383.33x = 175,744.11 × 76,412.61
  4. Step 4: Simplify right side
    127,383.33x = 13,429,066,137.23
  5. Step 5: Solve for x
    x = 13,429,066,137.23/127,383.33
  6. Step 6: Final answer
    x = 105,422.48

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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.