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Finding the Fourth Proportional to 163,843.05, 245,860.10 and 69,067.43

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Solution

The fourth proportional to 163,843.05, 245,860.10 and 69,067.43 is: 103,641.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,843.05 : 245,860.10 = 69,067.43 : x
  2. Step 2: Convert to fraction form
    163,843.05/245,860.10 = 69,067.43/x
  3. Step 3: Cross multiply
    163,843.05x = 245,860.10 × 69,067.43
  4. Step 4: Simplify right side
    163,843.05x = 16,980,923,671.91
  5. Step 5: Solve for x
    x = 16,980,923,671.91/163,843.05
  6. Step 6: Final answer
    x = 103,641.40

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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.