Home / 187,851.21-259,273.85-172,719.96

Finding the Fourth Proportional to 187,851.21, 259,273.85 and 172,719.96

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Solution

The fourth proportional to 187,851.21, 259,273.85 and 172,719.96 is: 238,389.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,851.21 : 259,273.85 = 172,719.96 : x
  2. Step 2: Convert to fraction form
    187,851.21/259,273.85 = 172,719.96/x
  3. Step 3: Cross multiply
    187,851.21x = 259,273.85 × 172,719.96
  4. Step 4: Simplify right side
    187,851.21x = 44,781,768,137.45
  5. Step 5: Solve for x
    x = 44,781,768,137.45/187,851.21
  6. Step 6: Final answer
    x = 238,389.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.