Home / 204,225.12-306,190.80-103,086.48

Finding the Fourth Proportional to 204,225.12, 306,190.80 and 103,086.48

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Solution

The fourth proportional to 204,225.12, 306,190.80 and 103,086.48 is: 154,555.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,225.12 : 306,190.80 = 103,086.48 : x
  2. Step 2: Convert to fraction form
    204,225.12/306,190.80 = 103,086.48/x
  3. Step 3: Cross multiply
    204,225.12x = 306,190.80 × 103,086.48
  4. Step 4: Simplify right side
    204,225.12x = 31,564,131,780.38
  5. Step 5: Solve for x
    x = 31,564,131,780.38/204,225.12
  6. Step 6: Final answer
    x = 154,555.58

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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.