Home / 132,128.89-198,223.62-57,261.60

Finding the Fourth Proportional to 132,128.89, 198,223.62 and 57,261.60

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Solution

The fourth proportional to 132,128.89, 198,223.62 and 57,261.60 is: 85,905.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,128.89 : 198,223.62 = 57,261.60 : x
  2. Step 2: Convert to fraction form
    132,128.89/198,223.62 = 57,261.60/x
  3. Step 3: Cross multiply
    132,128.89x = 198,223.62 × 57,261.60
  4. Step 4: Simplify right side
    132,128.89x = 11,350,601,352.68
  5. Step 5: Solve for x
    x = 11,350,601,352.68/132,128.89
  6. Step 6: Final answer
    x = 85,905.53

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1.5x scale

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.