Home / 231,527.79-319,406.96-135,991.41

Finding the Fourth Proportional to 231,527.79, 319,406.96 and 135,991.41

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Solution

The fourth proportional to 231,527.79, 319,406.96 and 135,991.41 is: 187,608.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,527.79 : 319,406.96 = 135,991.41 : x
  2. Step 2: Convert to fraction form
    231,527.79/319,406.96 = 135,991.41/x
  3. Step 3: Cross multiply
    231,527.79x = 319,406.96 × 135,991.41
  4. Step 4: Simplify right side
    231,527.79x = 43,436,602,174.26
  5. Step 5: Solve for x
    x = 43,436,602,174.26/231,527.79
  6. Step 6: Final answer
    x = 187,608.59

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1.5x scale

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.