Home / 126,921.08-175,145.09-75,961.89

Finding the Fourth Proportional to 126,921.08, 175,145.09 and 75,961.89

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Solution

The fourth proportional to 126,921.08, 175,145.09 and 75,961.89 is: 104,823.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,921.08 : 175,145.09 = 75,961.89 : x
  2. Step 2: Convert to fraction form
    126,921.08/175,145.09 = 75,961.89/x
  3. Step 3: Cross multiply
    126,921.08x = 175,145.09 × 75,961.89
  4. Step 4: Simplify right side
    126,921.08x = 13,304,351,680.81
  5. Step 5: Solve for x
    x = 13,304,351,680.81/126,921.08
  6. Step 6: Final answer
    x = 104,823.81

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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.