Home / 135,487.43-203,188.08-126,642.37

Finding the Fourth Proportional to 135,487.43, 203,188.08 and 126,642.37

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Solution

The fourth proportional to 135,487.43, 203,188.08 and 126,642.37 is: 189,923.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,487.43 : 203,188.08 = 126,642.37 : x
  2. Step 2: Convert to fraction form
    135,487.43/203,188.08 = 126,642.37/x
  3. Step 3: Cross multiply
    135,487.43x = 203,188.08 × 126,642.37
  4. Step 4: Simplify right side
    135,487.43x = 25,732,219,498.98
  5. Step 5: Solve for x
    x = 25,732,219,498.98/135,487.43
  6. Step 6: Final answer
    x = 189,923.29

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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.