Home / 189,725.88-261,814.40-109,179.26

Finding the Fourth Proportional to 189,725.88, 261,814.40 and 109,179.26

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Solution

The fourth proportional to 189,725.88, 261,814.40 and 109,179.26 is: 150,663.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,725.88 : 261,814.40 = 109,179.26 : x
  2. Step 2: Convert to fraction form
    189,725.88/261,814.40 = 109,179.26/x
  3. Step 3: Cross multiply
    189,725.88x = 261,814.40 × 109,179.26
  4. Step 4: Simplify right side
    189,725.88x = 28,584,702,449.34
  5. Step 5: Solve for x
    x = 28,584,702,449.34/189,725.88
  6. Step 6: Final answer
    x = 150,663.17

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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.