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Finding the Fourth Proportional to 123,032.79, 169,778.97 and 69,320.98

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Solution

The fourth proportional to 123,032.79, 169,778.97 and 69,320.98 is: 95,659.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,032.79 : 169,778.97 = 69,320.98 : x
  2. Step 2: Convert to fraction form
    123,032.79/169,778.97 = 69,320.98/x
  3. Step 3: Cross multiply
    123,032.79x = 169,778.97 × 69,320.98
  4. Step 4: Simplify right side
    123,032.79x = 11,769,244,796.01
  5. Step 5: Solve for x
    x = 11,769,244,796.01/123,032.79
  6. Step 6: Final answer
    x = 95,659.42

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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.