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Finding the Fourth Proportional to 169,679.50, 254,406.92 and 80,946.70

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Solution

The fourth proportional to 169,679.50, 254,406.92 and 80,946.70 is: 121,366.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,679.50 : 254,406.92 = 80,946.70 : x
  2. Step 2: Convert to fraction form
    169,679.50/254,406.92 = 80,946.70/x
  3. Step 3: Cross multiply
    169,679.50x = 254,406.92 × 80,946.70
  4. Step 4: Simplify right side
    169,679.50x = 20,593,400,631.16
  5. Step 5: Solve for x
    x = 20,593,400,631.16/169,679.50
  6. Step 6: Final answer
    x = 121,366.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.