Home / 239,678.29-330,775.89-137,723.56

Finding the Fourth Proportional to 239,678.29, 330,775.89 and 137,723.56

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Solution

The fourth proportional to 239,678.29, 330,775.89 and 137,723.56 is: 190,069.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,678.29 : 330,775.89 = 137,723.56 : x
  2. Step 2: Convert to fraction form
    239,678.29/330,775.89 = 137,723.56/x
  3. Step 3: Cross multiply
    239,678.29x = 330,775.89 × 137,723.56
  4. Step 4: Simplify right side
    239,678.29x = 45,555,631,789.57
  5. Step 5: Solve for x
    x = 45,555,631,789.57/239,678.29
  6. Step 6: Final answer
    x = 190,069.91

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1.5x scale

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.