Home / 259,625.04-389,611.52-91,145.87

Finding the Fourth Proportional to 259,625.04, 389,611.52 and 91,145.87

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Solution

The fourth proportional to 259,625.04, 389,611.52 and 91,145.87 is: 136,779.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,625.04 : 389,611.52 = 91,145.87 : x
  2. Step 2: Convert to fraction form
    259,625.04/389,611.52 = 91,145.87/x
  3. Step 3: Cross multiply
    259,625.04x = 389,611.52 × 91,145.87
  4. Step 4: Simplify right side
    259,625.04x = 35,511,479,666.61
  5. Step 5: Solve for x
    x = 35,511,479,666.61/259,625.04
  6. Step 6: Final answer
    x = 136,779.87

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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.