Home / 198,980.69-274,579.49-112,941.44

Finding the Fourth Proportional to 198,980.69, 274,579.49 and 112,941.44

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Solution

The fourth proportional to 198,980.69, 274,579.49 and 112,941.44 is: 155,851.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,980.69 : 274,579.49 = 112,941.44 : x
  2. Step 2: Convert to fraction form
    198,980.69/274,579.49 = 112,941.44/x
  3. Step 3: Cross multiply
    198,980.69x = 274,579.49 × 112,941.44
  4. Step 4: Simplify right side
    198,980.69x = 31,011,401,622.17
  5. Step 5: Solve for x
    x = 31,011,401,622.17/198,980.69
  6. Step 6: Final answer
    x = 155,851.31

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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.