Home / 135,158.82-186,516.03-77,799.27

Finding the Fourth Proportional to 135,158.82, 186,516.03 and 77,799.27

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Solution

The fourth proportional to 135,158.82, 186,516.03 and 77,799.27 is: 107,361.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,158.82 : 186,516.03 = 77,799.27 : x
  2. Step 2: Convert to fraction form
    135,158.82/186,516.03 = 77,799.27/x
  3. Step 3: Cross multiply
    135,158.82x = 186,516.03 × 77,799.27
  4. Step 4: Simplify right side
    135,158.82x = 14,510,810,977.30
  5. Step 5: Solve for x
    x = 14,510,810,977.30/135,158.82
  6. Step 6: Final answer
    x = 107,361.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.