Home / 163,105.20-225,094.86-91,489.23

Finding the Fourth Proportional to 163,105.20, 225,094.86 and 91,489.23

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Solution

The fourth proportional to 163,105.20, 225,094.86 and 91,489.23 is: 126,260.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,105.20 : 225,094.86 = 91,489.23 : x
  2. Step 2: Convert to fraction form
    163,105.20/225,094.86 = 91,489.23/x
  3. Step 3: Cross multiply
    163,105.20x = 225,094.86 × 91,489.23
  4. Step 4: Simplify right side
    163,105.20x = 20,593,755,418.36
  5. Step 5: Solve for x
    x = 20,593,755,418.36/163,105.20
  6. Step 6: Final answer
    x = 126,260.57

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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.