Home / 131,829.93-197,743.41-31,991.22

Finding the Fourth Proportional to 131,829.93, 197,743.41 and 31,991.22

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Solution

The fourth proportional to 131,829.93, 197,743.41 and 31,991.22 is: 47,986.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,829.93 : 197,743.41 = 31,991.22 : x
  2. Step 2: Convert to fraction form
    131,829.93/197,743.41 = 31,991.22/x
  3. Step 3: Cross multiply
    131,829.93x = 197,743.41 × 31,991.22
  4. Step 4: Simplify right side
    131,829.93x = 6,326,052,932.86
  5. Step 5: Solve for x
    x = 6,326,052,932.86/131,829.93
  6. Step 6: Final answer
    x = 47,986.47

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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.