Home / 99,540.30-137,317.23-63,701.58

Finding the Fourth Proportional to 99,540.30, 137,317.23 and 63,701.58

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Solution

The fourth proportional to 99,540.30, 137,317.23 and 63,701.58 is: 87,877.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,540.30 : 137,317.23 = 63,701.58 : x
  2. Step 2: Convert to fraction form
    99,540.30/137,317.23 = 63,701.58/x
  3. Step 3: Cross multiply
    99,540.30x = 137,317.23 × 63,701.58
  4. Step 4: Simplify right side
    99,540.30x = 8,747,324,512.22
  5. Step 5: Solve for x
    x = 8,747,324,512.22/99,540.30
  6. Step 6: Final answer
    x = 87,877.22

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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.