Home / 163,440.20-225,546.12-91,818.70

Finding the Fourth Proportional to 163,440.20, 225,546.12 and 91,818.70

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Solution

The fourth proportional to 163,440.20, 225,546.12 and 91,818.70 is: 126,709.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,440.20 : 225,546.12 = 91,818.70 : x
  2. Step 2: Convert to fraction form
    163,440.20/225,546.12 = 91,818.70/x
  3. Step 3: Cross multiply
    163,440.20x = 225,546.12 × 91,818.70
  4. Step 4: Simplify right side
    163,440.20x = 20,709,351,528.44
  5. Step 5: Solve for x
    x = 20,709,351,528.44/163,440.20
  6. Step 6: Final answer
    x = 126,709.04

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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.