Home / 189,731.30-261,844.08-108,063.01

Finding the Fourth Proportional to 189,731.30, 261,844.08 and 108,063.01

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Solution

The fourth proportional to 189,731.30, 261,844.08 and 108,063.01 is: 149,135.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,731.30 : 261,844.08 = 108,063.01 : x
  2. Step 2: Convert to fraction form
    189,731.30/261,844.08 = 108,063.01/x
  3. Step 3: Cross multiply
    189,731.30x = 261,844.08 × 108,063.01
  4. Step 4: Simplify right side
    189,731.30x = 28,295,659,357.55
  5. Step 5: Solve for x
    x = 28,295,659,357.55/189,731.30
  6. Step 6: Final answer
    x = 149,135.44

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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.