Home / 135,812.81-203,720.37-51,550.35

Finding the Fourth Proportional to 135,812.81, 203,720.37 and 51,550.35

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Solution

The fourth proportional to 135,812.81, 203,720.37 and 51,550.35 is: 77,325.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,812.81 : 203,720.37 = 51,550.35 : x
  2. Step 2: Convert to fraction form
    135,812.81/203,720.37 = 51,550.35/x
  3. Step 3: Cross multiply
    135,812.81x = 203,720.37 × 51,550.35
  4. Step 4: Simplify right side
    135,812.81x = 10,501,856,375.63
  5. Step 5: Solve for x
    x = 10,501,856,375.63/135,812.81
  6. Step 6: Final answer
    x = 77,325.96

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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.