Home / 198,717.72-274,237.47-113,851.17

Finding the Fourth Proportional to 198,717.72, 274,237.47 and 113,851.17

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Solution

The fourth proportional to 198,717.72, 274,237.47 and 113,851.17 is: 157,118.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,717.72 : 274,237.47 = 113,851.17 : x
  2. Step 2: Convert to fraction form
    198,717.72/274,237.47 = 113,851.17/x
  3. Step 3: Cross multiply
    198,717.72x = 274,237.47 × 113,851.17
  4. Step 4: Simplify right side
    198,717.72x = 31,222,256,817.34
  5. Step 5: Solve for x
    x = 31,222,256,817.34/198,717.72
  6. Step 6: Final answer
    x = 157,118.63

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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.