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Finding the Fourth Proportional to 169,952, 254,928 and 80,935.64

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Solution

The fourth proportional to 169,952, 254,928 and 80,935.64 is: 121,403.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,952 : 254,928 = 80,935.64 : x
  2. Step 2: Convert to fraction form
    169,952/254,928 = 80,935.64/x
  3. Step 3: Cross multiply
    169,952x = 254,928 × 80,935.64
  4. Step 4: Simplify right side
    169,952x = 20,632,760,833.92
  5. Step 5: Solve for x
    x = 20,632,760,833.92/169,952
  6. Step 6: Final answer
    x = 121,403.46

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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.