Home / 261,997.09-393,072.17-84,500.17

Finding the Fourth Proportional to 261,997.09, 393,072.17 and 84,500.17

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Solution

The fourth proportional to 261,997.09, 393,072.17 and 84,500.17 is: 126,774.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,997.09 : 393,072.17 = 84,500.17 : x
  2. Step 2: Convert to fraction form
    261,997.09/393,072.17 = 84,500.17/x
  3. Step 3: Cross multiply
    261,997.09x = 393,072.17 × 84,500.17
  4. Step 4: Simplify right side
    261,997.09x = 33,214,665,187.27
  5. Step 5: Solve for x
    x = 33,214,665,187.27/261,997.09
  6. Step 6: Final answer
    x = 126,774.94

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1.5x scale

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.