Home / 189,725.22-261,857.07-125,080.98

Finding the Fourth Proportional to 189,725.22, 261,857.07 and 125,080.98

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Solution

The fourth proportional to 189,725.22, 261,857.07 and 125,080.98 is: 172,635.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,725.22 : 261,857.07 = 125,080.98 : x
  2. Step 2: Convert to fraction form
    189,725.22/261,857.07 = 125,080.98/x
  3. Step 3: Cross multiply
    189,725.22x = 261,857.07 × 125,080.98
  4. Step 4: Simplify right side
    189,725.22x = 32,753,338,935.53
  5. Step 5: Solve for x
    x = 32,753,338,935.53/189,725.22
  6. Step 6: Final answer
    x = 172,635.66

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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.