Home / 163,581.72-225,750.78-91,984.20

Finding the Fourth Proportional to 163,581.72, 225,750.78 and 91,984.20

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Solution

The fourth proportional to 163,581.72, 225,750.78 and 91,984.20 is: 126,942.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,581.72 : 225,750.78 = 91,984.20 : x
  2. Step 2: Convert to fraction form
    163,581.72/225,750.78 = 91,984.20/x
  3. Step 3: Cross multiply
    163,581.72x = 225,750.78 × 91,984.20
  4. Step 4: Simplify right side
    163,581.72x = 20,765,504,897.68
  5. Step 5: Solve for x
    x = 20,765,504,897.68/163,581.72
  6. Step 6: Final answer
    x = 126,942.70

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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.