Home / 259,734.11-389,570.92-70,185.47

Finding the Fourth Proportional to 259,734.11, 389,570.92 and 70,185.47

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Solution

The fourth proportional to 259,734.11, 389,570.92 and 70,185.47 is: 105,270.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,734.11 : 389,570.92 = 70,185.47 : x
  2. Step 2: Convert to fraction form
    259,734.11/389,570.92 = 70,185.47/x
  3. Step 3: Cross multiply
    259,734.11x = 389,570.92 × 70,185.47
  4. Step 4: Simplify right side
    259,734.11x = 27,342,218,118.53
  5. Step 5: Solve for x
    x = 27,342,218,118.53/259,734.11
  6. Step 6: Final answer
    x = 105,270.03

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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.