Home / 198,983.21-274,582.94-112,943.94

Finding the Fourth Proportional to 198,983.21, 274,582.94 and 112,943.94

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Solution

The fourth proportional to 198,983.21, 274,582.94 and 112,943.94 is: 155,854.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,983.21 : 274,582.94 = 112,943.94 : x
  2. Step 2: Convert to fraction form
    198,983.21/274,582.94 = 112,943.94/x
  3. Step 3: Cross multiply
    198,983.21x = 274,582.94 × 112,943.94
  4. Step 4: Simplify right side
    198,983.21x = 31,012,478,535.66
  5. Step 5: Solve for x
    x = 31,012,478,535.66/198,983.21
  6. Step 6: Final answer
    x = 155,854.75

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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.