Home / 135,635.51-203,464.32-68,132.81

Finding the Fourth Proportional to 135,635.51, 203,464.32 and 68,132.81

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Solution

The fourth proportional to 135,635.51, 203,464.32 and 68,132.81 is: 102,204.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,635.51 : 203,464.32 = 68,132.81 : x
  2. Step 2: Convert to fraction form
    135,635.51/203,464.32 = 68,132.81/x
  3. Step 3: Cross multiply
    135,635.51x = 203,464.32 × 68,132.81
  4. Step 4: Simplify right side
    135,635.51x = 13,862,595,856.34
  5. Step 5: Solve for x
    x = 13,862,595,856.34/135,635.51
  6. Step 6: Final answer
    x = 102,204.77

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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.