Home / 231,615.09-347,418.86-91,374.93

Finding the Fourth Proportional to 231,615.09, 347,418.86 and 91,374.93

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Solution

The fourth proportional to 231,615.09, 347,418.86 and 91,374.93 is: 137,060.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,615.09 : 347,418.86 = 91,374.93 : x
  2. Step 2: Convert to fraction form
    231,615.09/347,418.86 = 91,374.93/x
  3. Step 3: Cross multiply
    231,615.09x = 347,418.86 × 91,374.93
  4. Step 4: Simplify right side
    231,615.09x = 31,745,373,556.31
  5. Step 5: Solve for x
    x = 31,745,373,556.31/231,615.09
  6. Step 6: Final answer
    x = 137,060.90

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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.