Home / 132,518.40-198,886.40-131,481.60

Finding the Fourth Proportional to 132,518.40, 198,886.40 and 131,481.60

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Solution

The fourth proportional to 132,518.40, 198,886.40 and 131,481.60 is: 197,330.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,518.40 : 198,886.40 = 131,481.60 : x
  2. Step 2: Convert to fraction form
    132,518.40/198,886.40 = 131,481.60/x
  3. Step 3: Cross multiply
    132,518.40x = 198,886.40 × 131,481.60
  4. Step 4: Simplify right side
    132,518.40x = 26,149,902,090.24
  5. Step 5: Solve for x
    x = 26,149,902,090.24/132,518.40
  6. Step 6: Final answer
    x = 197,330.35

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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.