Home / 115,412.80-173,119.20-96,750.40

Finding the Fourth Proportional to 115,412.80, 173,119.20 and 96,750.40

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Solution

The fourth proportional to 115,412.80, 173,119.20 and 96,750.40 is: 145,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,412.80 : 173,119.20 = 96,750.40 : x
  2. Step 2: Convert to fraction form
    115,412.80/173,119.20 = 96,750.40/x
  3. Step 3: Cross multiply
    115,412.80x = 173,119.20 × 96,750.40
  4. Step 4: Simplify right side
    115,412.80x = 16,749,351,847.68
  5. Step 5: Solve for x
    x = 16,749,351,847.68/115,412.80
  6. Step 6: Final answer
    x = 145,125.60

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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.