Home / 163,445.30-225,540.69-91,819.70

Finding the Fourth Proportional to 163,445.30, 225,540.69 and 91,819.70

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Solution

The fourth proportional to 163,445.30, 225,540.69 and 91,819.70 is: 126,703.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,445.30 : 225,540.69 = 91,819.70 : x
  2. Step 2: Convert to fraction form
    163,445.30/225,540.69 = 91,819.70/x
  3. Step 3: Cross multiply
    163,445.30x = 225,540.69 × 91,819.70
  4. Step 4: Simplify right side
    163,445.30x = 20,709,078,493.59
  5. Step 5: Solve for x
    x = 20,709,078,493.59/163,445.30
  6. Step 6: Final answer
    x = 126,703.42

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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.