Home / 126,991.82-175,177.95-117,981.38

Finding the Fourth Proportional to 126,991.82, 175,177.95 and 117,981.38

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Solution

The fourth proportional to 126,991.82, 175,177.95 and 117,981.38 is: 162,748.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,991.82 : 175,177.95 = 117,981.38 : x
  2. Step 2: Convert to fraction form
    126,991.82/175,177.95 = 117,981.38/x
  3. Step 3: Cross multiply
    126,991.82x = 175,177.95 × 117,981.38
  4. Step 4: Simplify right side
    126,991.82x = 20,667,736,286.57
  5. Step 5: Solve for x
    x = 20,667,736,286.57/126,991.82
  6. Step 6: Final answer
    x = 162,748.56

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1.5x scale

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.