Home / 209,933.95-314,891.36-67,785.79

Finding the Fourth Proportional to 209,933.95, 314,891.36 and 67,785.79

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Solution

The fourth proportional to 209,933.95, 314,891.36 and 67,785.79 is: 101,675.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,933.95 : 314,891.36 = 67,785.79 : x
  2. Step 2: Convert to fraction form
    209,933.95/314,891.36 = 67,785.79/x
  3. Step 3: Cross multiply
    209,933.95x = 314,891.36 × 67,785.79
  4. Step 4: Simplify right side
    209,933.95x = 21,345,158,529.93
  5. Step 5: Solve for x
    x = 21,345,158,529.93/209,933.95
  6. Step 6: Final answer
    x = 101,675.59

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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.