Home / 135,508.34-203,387.43-68,996.42

Finding the Fourth Proportional to 135,508.34, 203,387.43 and 68,996.42

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Solution

The fourth proportional to 135,508.34, 203,387.43 and 68,996.42 is: 103,558.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,508.34 : 203,387.43 = 68,996.42 : x
  2. Step 2: Convert to fraction form
    135,508.34/203,387.43 = 68,996.42/x
  3. Step 3: Cross multiply
    135,508.34x = 203,387.43 × 68,996.42
  4. Step 4: Simplify right side
    135,508.34x = 14,033,004,543.00
  5. Step 5: Solve for x
    x = 14,033,004,543.00/135,508.34
  6. Step 6: Final answer
    x = 103,558.24

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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.