Home / 198,721.48-274,274.58-113,895.40

Finding the Fourth Proportional to 198,721.48, 274,274.58 and 113,895.40

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Solution

The fourth proportional to 198,721.48, 274,274.58 and 113,895.40 is: 157,197.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,721.48 : 274,274.58 = 113,895.40 : x
  2. Step 2: Convert to fraction form
    198,721.48/274,274.58 = 113,895.40/x
  3. Step 3: Cross multiply
    198,721.48x = 274,274.58 × 113,895.40
  4. Step 4: Simplify right side
    198,721.48x = 31,238,612,998.93
  5. Step 5: Solve for x
    x = 31,238,612,998.93/198,721.48
  6. Step 6: Final answer
    x = 157,197.97

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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.