Home / 198,420.80-273,822.90-116,767.10

Finding the Fourth Proportional to 198,420.80, 273,822.90 and 116,767.10

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Solution

The fourth proportional to 198,420.80, 273,822.90 and 116,767.10 is: 161,139.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,420.80 : 273,822.90 = 116,767.10 : x
  2. Step 2: Convert to fraction form
    198,420.80/273,822.90 = 116,767.10/x
  3. Step 3: Cross multiply
    198,420.80x = 273,822.90 × 116,767.10
  4. Step 4: Simplify right side
    198,420.80x = 31,973,504,577.48
  5. Step 5: Solve for x
    x = 31,973,504,577.48/198,420.80
  6. Step 6: Final answer
    x = 161,139.89

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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.