Home / 115,469.40-173,204.10-75,811.80

Finding the Fourth Proportional to 115,469.40, 173,204.10 and 75,811.80

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Solution

The fourth proportional to 115,469.40, 173,204.10 and 75,811.80 is: 113,717.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,469.40 : 173,204.10 = 75,811.80 : x
  2. Step 2: Convert to fraction form
    115,469.40/173,204.10 = 75,811.80/x
  3. Step 3: Cross multiply
    115,469.40x = 173,204.10 × 75,811.80
  4. Step 4: Simplify right side
    115,469.40x = 13,130,914,588.38
  5. Step 5: Solve for x
    x = 13,130,914,588.38/115,469.40
  6. Step 6: Final answer
    x = 113,717.70

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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.