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Finding the Fourth Proportional to 165,342.03, 248,007.56 and 71,847.78

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Solution

The fourth proportional to 165,342.03, 248,007.56 and 71,847.78 is: 107,769.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,342.03 : 248,007.56 = 71,847.78 : x
  2. Step 2: Convert to fraction form
    165,342.03/248,007.56 = 71,847.78/x
  3. Step 3: Cross multiply
    165,342.03x = 248,007.56 × 71,847.78
  4. Step 4: Simplify right side
    165,342.03x = 17,818,792,249.98
  5. Step 5: Solve for x
    x = 17,818,792,249.98/165,342.03
  6. Step 6: Final answer
    x = 107,769.28

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1.5x scale

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.