Home / 135,974.28-203,990.22-42,487.08

Finding the Fourth Proportional to 135,974.28, 203,990.22 and 42,487.08

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Solution

The fourth proportional to 135,974.28, 203,990.22 and 42,487.08 is: 63,739.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,974.28 : 203,990.22 = 42,487.08 : x
  2. Step 2: Convert to fraction form
    135,974.28/203,990.22 = 42,487.08/x
  3. Step 3: Cross multiply
    135,974.28x = 203,990.22 × 42,487.08
  4. Step 4: Simplify right side
    135,974.28x = 8,666,948,796.36
  5. Step 5: Solve for x
    x = 8,666,948,796.36/135,974.28
  6. Step 6: Final answer
    x = 63,739.62

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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.