Home / 115,186.25-172,857.23-40,307.06

Finding the Fourth Proportional to 115,186.25, 172,857.23 and 40,307.06

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Solution

The fourth proportional to 115,186.25, 172,857.23 and 40,307.06 is: 60,487.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,186.25 : 172,857.23 = 40,307.06 : x
  2. Step 2: Convert to fraction form
    115,186.25/172,857.23 = 40,307.06/x
  3. Step 3: Cross multiply
    115,186.25x = 172,857.23 × 40,307.06
  4. Step 4: Simplify right side
    115,186.25x = 6,967,365,850.72
  5. Step 5: Solve for x
    x = 6,967,365,850.72/115,186.25
  6. Step 6: Final answer
    x = 60,487.82

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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.