Home / 115,725.20-173,645.40-65,843.60

Finding the Fourth Proportional to 115,725.20, 173,645.40 and 65,843.60

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Solution

The fourth proportional to 115,725.20, 173,645.40 and 65,843.60 is: 98,798.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,725.20 : 173,645.40 = 65,843.60 : x
  2. Step 2: Convert to fraction form
    115,725.20/173,645.40 = 65,843.60/x
  3. Step 3: Cross multiply
    115,725.20x = 173,645.40 × 65,843.60
  4. Step 4: Simplify right side
    115,725.20x = 11,433,438,259.44
  5. Step 5: Solve for x
    x = 11,433,438,259.44/115,725.20
  6. Step 6: Final answer
    x = 98,798.17

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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.