Home / 132,438.40-198,657.60-110,276.80

Finding the Fourth Proportional to 132,438.40, 198,657.60 and 110,276.80

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Solution

The fourth proportional to 132,438.40, 198,657.60 and 110,276.80 is: 165,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,438.40 : 198,657.60 = 110,276.80 : x
  2. Step 2: Convert to fraction form
    132,438.40/198,657.60 = 110,276.80/x
  3. Step 3: Cross multiply
    132,438.40x = 198,657.60 × 110,276.80
  4. Step 4: Simplify right side
    132,438.40x = 21,907,324,423.68
  5. Step 5: Solve for x
    x = 21,907,324,423.68/132,438.40
  6. Step 6: Final answer
    x = 165,415.20

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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.