Home / 260,044.20-390,067.79-80,127.27

Finding the Fourth Proportional to 260,044.20, 390,067.79 and 80,127.27

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Solution

The fourth proportional to 260,044.20, 390,067.79 and 80,127.27 is: 120,191.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,044.20 : 390,067.79 = 80,127.27 : x
  2. Step 2: Convert to fraction form
    260,044.20/390,067.79 = 80,127.27/x
  3. Step 3: Cross multiply
    260,044.20x = 390,067.79 × 80,127.27
  4. Step 4: Simplify right side
    260,044.20x = 31,255,066,727.00
  5. Step 5: Solve for x
    x = 31,255,066,727.00/260,044.20
  6. Step 6: Final answer
    x = 120,191.36

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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.