Home / 126,924.60-189,998.10-112,927.80

Finding the Fourth Proportional to 126,924.60, 189,998.10 and 112,927.80

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Solution

The fourth proportional to 126,924.60, 189,998.10 and 112,927.80 is: 169,045.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,924.60 : 189,998.10 = 112,927.80 : x
  2. Step 2: Convert to fraction form
    126,924.60/189,998.10 = 112,927.80/x
  3. Step 3: Cross multiply
    126,924.60x = 189,998.10 × 112,927.80
  4. Step 4: Simplify right side
    126,924.60x = 21,456,067,437.18
  5. Step 5: Solve for x
    x = 21,456,067,437.18/126,924.60
  6. Step 6: Final answer
    x = 169,045.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.