Home / 199,118.30-297,990.36-123,185.66

Finding the Fourth Proportional to 199,118.30, 297,990.36 and 123,185.66

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Solution

The fourth proportional to 199,118.30, 297,990.36 and 123,185.66 is: 184,353.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,118.30 : 297,990.36 = 123,185.66 : x
  2. Step 2: Convert to fraction form
    199,118.30/297,990.36 = 123,185.66/x
  3. Step 3: Cross multiply
    199,118.30x = 297,990.36 × 123,185.66
  4. Step 4: Simplify right side
    199,118.30x = 36,708,137,680.29
  5. Step 5: Solve for x
    x = 36,708,137,680.29/199,118.30
  6. Step 6: Final answer
    x = 184,353.42

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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.