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Finding the Fourth Proportional to 169,849.80, 254,969.10 and 99,768.60

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Solution

The fourth proportional to 169,849.80, 254,969.10 and 99,768.60 is: 149,767.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,849.80 : 254,969.10 = 99,768.60 : x
  2. Step 2: Convert to fraction form
    169,849.80/254,969.10 = 99,768.60/x
  3. Step 3: Cross multiply
    169,849.80x = 254,969.10 × 99,768.60
  4. Step 4: Simplify right side
    169,849.80x = 25,437,910,150.26
  5. Step 5: Solve for x
    x = 25,437,910,150.26/169,849.80
  6. Step 6: Final answer
    x = 149,767.09

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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.