Home / 198,972-274,814.64-131,787.36

Finding the Fourth Proportional to 198,972, 274,814.64 and 131,787.36

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Solution

The fourth proportional to 198,972, 274,814.64 and 131,787.36 is: 182,021.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,972 : 274,814.64 = 131,787.36 : x
  2. Step 2: Convert to fraction form
    198,972/274,814.64 = 131,787.36/x
  3. Step 3: Cross multiply
    198,972x = 274,814.64 × 131,787.36
  4. Step 4: Simplify right side
    198,972x = 36,217,095,894.95
  5. Step 5: Solve for x
    x = 36,217,095,894.95/198,972
  6. Step 6: Final answer
    x = 182,021.07

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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.