Home / 99,634.72-137,504.16-57,201.44

Finding the Fourth Proportional to 99,634.72, 137,504.16 and 57,201.44

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Solution

The fourth proportional to 99,634.72, 137,504.16 and 57,201.44 is: 78,942.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,634.72 : 137,504.16 = 57,201.44 : x
  2. Step 2: Convert to fraction form
    99,634.72/137,504.16 = 57,201.44/x
  3. Step 3: Cross multiply
    99,634.72x = 137,504.16 × 57,201.44
  4. Step 4: Simplify right side
    99,634.72x = 7,865,435,957.99
  5. Step 5: Solve for x
    x = 7,865,435,957.99/99,634.72
  6. Step 6: Final answer
    x = 78,942.72

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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.