Home / 189,242.88-261,131.52-108,673.92

Finding the Fourth Proportional to 189,242.88, 261,131.52 and 108,673.92

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Solution

The fourth proportional to 189,242.88, 261,131.52 and 108,673.92 is: 149,956.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,242.88 : 261,131.52 = 108,673.92 : x
  2. Step 2: Convert to fraction form
    189,242.88/261,131.52 = 108,673.92/x
  3. Step 3: Cross multiply
    189,242.88x = 261,131.52 × 108,673.92
  4. Step 4: Simplify right side
    189,242.88x = 28,378,185,913.96
  5. Step 5: Solve for x
    x = 28,378,185,913.96/189,242.88
  6. Step 6: Final answer
    x = 149,956.43

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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.