Home / 207,067.86-310,555.62-80,711.51

Finding the Fourth Proportional to 207,067.86, 310,555.62 and 80,711.51

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Solution

The fourth proportional to 207,067.86, 310,555.62 and 80,711.51 is: 121,049.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,067.86 : 310,555.62 = 80,711.51 : x
  2. Step 2: Convert to fraction form
    207,067.86/310,555.62 = 80,711.51/x
  3. Step 3: Cross multiply
    207,067.86x = 310,555.62 × 80,711.51
  4. Step 4: Simplify right side
    207,067.86x = 25,065,411,476.41
  5. Step 5: Solve for x
    x = 25,065,411,476.41/207,067.86
  6. Step 6: Final answer
    x = 121,049.26

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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.