Home / 135,872.28-203,762.34-51,612.12

Finding the Fourth Proportional to 135,872.28, 203,762.34 and 51,612.12

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Solution

The fourth proportional to 135,872.28, 203,762.34 and 51,612.12 is: 77,400.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,872.28 : 203,762.34 = 51,612.12 : x
  2. Step 2: Convert to fraction form
    135,872.28/203,762.34 = 51,612.12/x
  3. Step 3: Cross multiply
    135,872.28x = 203,762.34 × 51,612.12
  4. Step 4: Simplify right side
    135,872.28x = 10,516,606,343.56
  5. Step 5: Solve for x
    x = 10,516,606,343.56/135,872.28
  6. Step 6: Final answer
    x = 77,400.68

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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.