Home / 115,273.16-172,987.44-40,393.97

Finding the Fourth Proportional to 115,273.16, 172,987.44 and 40,393.97

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Solution

The fourth proportional to 115,273.16, 172,987.44 and 40,393.97 is: 60,618.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,273.16 : 172,987.44 = 40,393.97 : x
  2. Step 2: Convert to fraction form
    115,273.16/172,987.44 = 40,393.97/x
  3. Step 3: Cross multiply
    115,273.16x = 172,987.44 × 40,393.97
  4. Step 4: Simplify right side
    115,273.16x = 6,987,649,894.21
  5. Step 5: Solve for x
    x = 6,987,649,894.21/115,273.16
  6. Step 6: Final answer
    x = 60,618.19

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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.