Home / 225,139.25-310,694.61-123,162.51

Finding the Fourth Proportional to 225,139.25, 310,694.61 and 123,162.51

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Solution

The fourth proportional to 225,139.25, 310,694.61 and 123,162.51 is: 169,965.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,139.25 : 310,694.61 = 123,162.51 : x
  2. Step 2: Convert to fraction form
    225,139.25/310,694.61 = 123,162.51/x
  3. Step 3: Cross multiply
    225,139.25x = 310,694.61 × 123,162.51
  4. Step 4: Simplify right side
    225,139.25x = 38,265,928,011.07
  5. Step 5: Solve for x
    x = 38,265,928,011.07/225,139.25
  6. Step 6: Final answer
    x = 169,965.61

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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.