Home / 124,782.19-187,067.21-54,609.07

Finding the Fourth Proportional to 124,782.19, 187,067.21 and 54,609.07

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Solution

The fourth proportional to 124,782.19, 187,067.21 and 54,609.07 is: 81,867.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,782.19 : 187,067.21 = 54,609.07 : x
  2. Step 2: Convert to fraction form
    124,782.19/187,067.21 = 54,609.07/x
  3. Step 3: Cross multiply
    124,782.19x = 187,067.21 × 54,609.07
  4. Step 4: Simplify right side
    124,782.19x = 10,215,566,092.55
  5. Step 5: Solve for x
    x = 10,215,566,092.55/124,782.19
  6. Step 6: Final answer
    x = 81,867.18

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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.