Home / 96,757.20-145,135.80-73,137.60

Finding the Fourth Proportional to 96,757.20, 145,135.80 and 73,137.60

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Solution

The fourth proportional to 96,757.20, 145,135.80 and 73,137.60 is: 109,706.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,757.20 : 145,135.80 = 73,137.60 : x
  2. Step 2: Convert to fraction form
    96,757.20/145,135.80 = 73,137.60/x
  3. Step 3: Cross multiply
    96,757.20x = 145,135.80 × 73,137.60
  4. Step 4: Simplify right side
    96,757.20x = 10,614,884,086.08
  5. Step 5: Solve for x
    x = 10,614,884,086.08/96,757.20
  6. Step 6: Final answer
    x = 109,706.40

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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.