Home / 135,872.27-203,742.57-56,965.31

Finding the Fourth Proportional to 135,872.27, 203,742.57 and 56,965.31

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Solution

The fourth proportional to 135,872.27, 203,742.57 and 56,965.31 is: 85,420.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,872.27 : 203,742.57 = 56,965.31 : x
  2. Step 2: Convert to fraction form
    135,872.27/203,742.57 = 56,965.31/x
  3. Step 3: Cross multiply
    135,872.27x = 203,742.57 × 56,965.31
  4. Step 4: Simplify right side
    135,872.27x = 11,606,258,660.25
  5. Step 5: Solve for x
    x = 11,606,258,660.25/135,872.27
  6. Step 6: Final answer
    x = 85,420.36

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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.