Home / 172,441.80-237,923.10-100,839.42

Finding the Fourth Proportional to 172,441.80, 237,923.10 and 100,839.42

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Solution

The fourth proportional to 172,441.80, 237,923.10 and 100,839.42 is: 139,131.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,441.80 : 237,923.10 = 100,839.42 : x
  2. Step 2: Convert to fraction form
    172,441.80/237,923.10 = 100,839.42/x
  3. Step 3: Cross multiply
    172,441.80x = 237,923.10 × 100,839.42
  4. Step 4: Simplify right side
    172,441.80x = 23,992,027,408.60
  5. Step 5: Solve for x
    x = 23,992,027,408.60/172,441.80
  6. Step 6: Final answer
    x = 139,131.16

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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.