Home / 260,456.06-390,805.62-92,103.88

Finding the Fourth Proportional to 260,456.06, 390,805.62 and 92,103.88

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Solution

The fourth proportional to 260,456.06, 390,805.62 and 92,103.88 is: 138,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,456.06 : 390,805.62 = 92,103.88 : x
  2. Step 2: Convert to fraction form
    260,456.06/390,805.62 = 92,103.88/x
  3. Step 3: Cross multiply
    260,456.06x = 390,805.62 × 92,103.88
  4. Step 4: Simplify right side
    260,456.06x = 35,994,713,927.81
  5. Step 5: Solve for x
    x = 35,994,713,927.81/260,456.06
  6. Step 6: Final answer
    x = 138,198.80

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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.