Home / 135,290.78-203,006.19-98,157.35

Finding the Fourth Proportional to 135,290.78, 203,006.19 and 98,157.35

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Solution

The fourth proportional to 135,290.78, 203,006.19 and 98,157.35 is: 147,286.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,290.78 : 203,006.19 = 98,157.35 : x
  2. Step 2: Convert to fraction form
    135,290.78/203,006.19 = 98,157.35/x
  3. Step 3: Cross multiply
    135,290.78x = 203,006.19 × 98,157.35
  4. Step 4: Simplify right side
    135,290.78x = 19,926,548,997.06
  5. Step 5: Solve for x
    x = 19,926,548,997.06/135,290.78
  6. Step 6: Final answer
    x = 147,286.82

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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.