Home / 115,553.20-173,387.40-65,671.60

Finding the Fourth Proportional to 115,553.20, 173,387.40 and 65,671.60

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Solution

The fourth proportional to 115,553.20, 173,387.40 and 65,671.60 is: 98,540.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,553.20 : 173,387.40 = 65,671.60 : x
  2. Step 2: Convert to fraction form
    115,553.20/173,387.40 = 65,671.60/x
  3. Step 3: Cross multiply
    115,553.20x = 173,387.40 × 65,671.60
  4. Step 4: Simplify right side
    115,553.20x = 11,386,627,977.84
  5. Step 5: Solve for x
    x = 11,386,627,977.84/115,553.20
  6. Step 6: Final answer
    x = 98,540.14

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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.