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Finding the Fourth Proportional to 163,370.09, 245,067.42 and 45,040.43

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Solution

The fourth proportional to 163,370.09, 245,067.42 and 45,040.43 is: 67,564.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,370.09 : 245,067.42 = 45,040.43 : x
  2. Step 2: Convert to fraction form
    163,370.09/245,067.42 = 45,040.43/x
  3. Step 3: Cross multiply
    163,370.09x = 245,067.42 × 45,040.43
  4. Step 4: Simplify right side
    163,370.09x = 11,037,941,975.79
  5. Step 5: Solve for x
    x = 11,037,941,975.79/163,370.09
  6. Step 6: Final answer
    x = 67,564.03

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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.