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Finding the Fourth Proportional to 169,282.80, 254,007.31 and 68,076.76

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Solution

The fourth proportional to 169,282.80, 254,007.31 and 68,076.76 is: 102,148.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,282.80 : 254,007.31 = 68,076.76 : x
  2. Step 2: Convert to fraction form
    169,282.80/254,007.31 = 68,076.76/x
  3. Step 3: Cross multiply
    169,282.80x = 254,007.31 × 68,076.76
  4. Step 4: Simplify right side
    169,282.80x = 17,291,994,681.12
  5. Step 5: Solve for x
    x = 17,291,994,681.12/169,282.80
  6. Step 6: Final answer
    x = 102,148.56

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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.