Home / 103,198.14-154,796.54-28,312.43

Finding the Fourth Proportional to 103,198.14, 154,796.54 and 28,312.43

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Solution

The fourth proportional to 103,198.14, 154,796.54 and 28,312.43 is: 42,468.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,198.14 : 154,796.54 = 28,312.43 : x
  2. Step 2: Convert to fraction form
    103,198.14/154,796.54 = 28,312.43/x
  3. Step 3: Cross multiply
    103,198.14x = 154,796.54 × 28,312.43
  4. Step 4: Simplify right side
    103,198.14x = 4,382,665,287.45
  5. Step 5: Solve for x
    x = 4,382,665,287.45/103,198.14
  6. Step 6: Final answer
    x = 42,468.45

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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.