Home / 259,741.90-389,653.80-109,982.98

Finding the Fourth Proportional to 259,741.90, 389,653.80 and 109,982.98

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Solution

The fourth proportional to 259,741.90, 389,653.80 and 109,982.98 is: 164,991.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,741.90 : 389,653.80 = 109,982.98 : x
  2. Step 2: Convert to fraction form
    259,741.90/389,653.80 = 109,982.98/x
  3. Step 3: Cross multiply
    259,741.90x = 389,653.80 × 109,982.98
  4. Step 4: Simplify right side
    259,741.90x = 42,855,286,092.32
  5. Step 5: Solve for x
    x = 42,855,286,092.32/259,741.90
  6. Step 6: Final answer
    x = 164,991.81

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1.5x scale

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.