Home / 198,243.36-297,206.42-103,425.96

Finding the Fourth Proportional to 198,243.36, 297,206.42 and 103,425.96

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Solution

The fourth proportional to 198,243.36, 297,206.42 and 103,425.96 is: 155,056.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,243.36 : 297,206.42 = 103,425.96 : x
  2. Step 2: Convert to fraction form
    198,243.36/297,206.42 = 103,425.96/x
  3. Step 3: Cross multiply
    198,243.36x = 297,206.42 × 103,425.96
  4. Step 4: Simplify right side
    198,243.36x = 30,738,859,306.66
  5. Step 5: Solve for x
    x = 30,738,859,306.66/198,243.36
  6. Step 6: Final answer
    x = 155,056.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.