Home / 126,824.20-175,133.78-81,608

Finding the Fourth Proportional to 126,824.20, 175,133.78 and 81,608

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Solution

The fourth proportional to 126,824.20, 175,133.78 and 81,608 is: 112,693.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,824.20 : 175,133.78 = 81,608 : x
  2. Step 2: Convert to fraction form
    126,824.20/175,133.78 = 81,608/x
  3. Step 3: Cross multiply
    126,824.20x = 175,133.78 × 81,608
  4. Step 4: Simplify right side
    126,824.20x = 14,292,317,518.24
  5. Step 5: Solve for x
    x = 14,292,317,518.24/126,824.20
  6. Step 6: Final answer
    x = 112,693.93

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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.