Home / 127,346.33-175,738.78-79,627.61

Finding the Fourth Proportional to 127,346.33, 175,738.78 and 79,627.61

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Solution

The fourth proportional to 127,346.33, 175,738.78 and 79,627.61 is: 109,886.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,346.33 : 175,738.78 = 79,627.61 : x
  2. Step 2: Convert to fraction form
    127,346.33/175,738.78 = 79,627.61/x
  3. Step 3: Cross multiply
    127,346.33x = 175,738.78 × 79,627.61
  4. Step 4: Simplify right side
    127,346.33x = 13,993,659,574.60
  5. Step 5: Solve for x
    x = 13,993,659,574.60/127,346.33
  6. Step 6: Final answer
    x = 109,886.63

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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.