Home / 168,021-231,868.98-92,571.12

Finding the Fourth Proportional to 168,021, 231,868.98 and 92,571.12

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Solution

The fourth proportional to 168,021, 231,868.98 and 92,571.12 is: 127,748.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,021 : 231,868.98 = 92,571.12 : x
  2. Step 2: Convert to fraction form
    168,021/231,868.98 = 92,571.12/x
  3. Step 3: Cross multiply
    168,021x = 231,868.98 × 92,571.12
  4. Step 4: Simplify right side
    168,021x = 21,464,371,171.86
  5. Step 5: Solve for x
    x = 21,464,371,171.86/168,021
  6. Step 6: Final answer
    x = 127,748.15

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1.5x scale

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.