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Finding the Fourth Proportional to 169,928.52, 254,892.76 and 80,912.14

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Solution

The fourth proportional to 169,928.52, 254,892.76 and 80,912.14 is: 121,368.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,928.52 : 254,892.76 = 80,912.14 : x
  2. Step 2: Convert to fraction form
    169,928.52/254,892.76 = 80,912.14/x
  3. Step 3: Cross multiply
    169,928.52x = 254,892.76 × 80,912.14
  4. Step 4: Simplify right side
    169,928.52x = 20,623,918,682.11
  5. Step 5: Solve for x
    x = 20,623,918,682.11/169,928.52
  6. Step 6: Final answer
    x = 121,368.20

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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.