Home / 259,726.08-389,293.80-109,872.84

Finding the Fourth Proportional to 259,726.08, 389,293.80 and 109,872.84

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Solution

The fourth proportional to 259,726.08, 389,293.80 and 109,872.84 is: 164,684.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,726.08 : 389,293.80 = 109,872.84 : x
  2. Step 2: Convert to fraction form
    259,726.08/389,293.80 = 109,872.84/x
  3. Step 3: Cross multiply
    259,726.08x = 389,293.80 × 109,872.84
  4. Step 4: Simplify right side
    259,726.08x = 42,772,815,400.39
  5. Step 5: Solve for x
    x = 42,772,815,400.39/259,726.08
  6. Step 6: Final answer
    x = 164,684.33

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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.