Home / 171,729.88-236,853.30-103,675.72

Finding the Fourth Proportional to 171,729.88, 236,853.30 and 103,675.72

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Solution

The fourth proportional to 171,729.88, 236,853.30 and 103,675.72 is: 142,991.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,729.88 : 236,853.30 = 103,675.72 : x
  2. Step 2: Convert to fraction form
    171,729.88/236,853.30 = 103,675.72/x
  3. Step 3: Cross multiply
    171,729.88x = 236,853.30 × 103,675.72
  4. Step 4: Simplify right side
    171,729.88x = 24,555,936,411.88
  5. Step 5: Solve for x
    x = 24,555,936,411.88/171,729.88
  6. Step 6: Final answer
    x = 142,991.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.