Home / 198,977.76-274,582.83-112,943.61

Finding the Fourth Proportional to 198,977.76, 274,582.83 and 112,943.61

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Solution

The fourth proportional to 198,977.76, 274,582.83 and 112,943.61 is: 155,858.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,977.76 : 274,582.83 = 112,943.61 : x
  2. Step 2: Convert to fraction form
    198,977.76/274,582.83 = 112,943.61/x
  3. Step 3: Cross multiply
    198,977.76x = 274,582.83 × 112,943.61
  4. Step 4: Simplify right side
    198,977.76x = 31,012,376,064.22
  5. Step 5: Solve for x
    x = 31,012,376,064.22/198,977.76
  6. Step 6: Final answer
    x = 155,858.50

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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.