Home / 135,796.06-203,690.96-79,990.18

Finding the Fourth Proportional to 135,796.06, 203,690.96 and 79,990.18

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Solution

The fourth proportional to 135,796.06, 203,690.96 and 79,990.18 is: 119,983.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,796.06 : 203,690.96 = 79,990.18 : x
  2. Step 2: Convert to fraction form
    135,796.06/203,690.96 = 79,990.18/x
  3. Step 3: Cross multiply
    135,796.06x = 203,690.96 × 79,990.18
  4. Step 4: Simplify right side
    135,796.06x = 16,293,276,554.77
  5. Step 5: Solve for x
    x = 16,293,276,554.77/135,796.06
  6. Step 6: Final answer
    x = 119,983.43

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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.