Home / 168,050.78-231,907.15-91,570.52

Finding the Fourth Proportional to 168,050.78, 231,907.15 and 91,570.52

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Solution

The fourth proportional to 168,050.78, 231,907.15 and 91,570.52 is: 126,365.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,050.78 : 231,907.15 = 91,570.52 : x
  2. Step 2: Convert to fraction form
    168,050.78/231,907.15 = 91,570.52/x
  3. Step 3: Cross multiply
    168,050.78x = 231,907.15 × 91,570.52
  4. Step 4: Simplify right side
    168,050.78x = 21,235,857,706.97
  5. Step 5: Solve for x
    x = 21,235,857,706.97/168,050.78
  6. Step 6: Final answer
    x = 126,365.72

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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.