Home / 198,381.81-273,700.31-112,329.03

Finding the Fourth Proportional to 198,381.81, 273,700.31 and 112,329.03

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Solution

The fourth proportional to 198,381.81, 273,700.31 and 112,329.03 is: 154,976.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,381.81 : 273,700.31 = 112,329.03 : x
  2. Step 2: Convert to fraction form
    198,381.81/273,700.31 = 112,329.03/x
  3. Step 3: Cross multiply
    198,381.81x = 273,700.31 × 112,329.03
  4. Step 4: Simplify right side
    198,381.81x = 30,744,489,771.35
  5. Step 5: Solve for x
    x = 30,744,489,771.35/198,381.81
  6. Step 6: Final answer
    x = 154,976.35

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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.