Home / 198,564.45-274,021.04-107,920.44

Finding the Fourth Proportional to 198,564.45, 274,021.04 and 107,920.44

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Solution

The fourth proportional to 198,564.45, 274,021.04 and 107,920.44 is: 148,931.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,564.45 : 274,021.04 = 107,920.44 : x
  2. Step 2: Convert to fraction form
    198,564.45/274,021.04 = 107,920.44/x
  3. Step 3: Cross multiply
    198,564.45x = 274,021.04 × 107,920.44
  4. Step 4: Simplify right side
    198,564.45x = 29,572,471,206.06
  5. Step 5: Solve for x
    x = 29,572,471,206.06/198,564.45
  6. Step 6: Final answer
    x = 148,931.35

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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.