Home / 206,831.52-285,271.44-139,739.04

Finding the Fourth Proportional to 206,831.52, 285,271.44 and 139,739.04

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Solution

The fourth proportional to 206,831.52, 285,271.44 and 139,739.04 is: 192,734.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,831.52 : 285,271.44 = 139,739.04 : x
  2. Step 2: Convert to fraction form
    206,831.52/285,271.44 = 139,739.04/x
  3. Step 3: Cross multiply
    206,831.52x = 285,271.44 × 139,739.04
  4. Step 4: Simplify right side
    206,831.52x = 39,863,557,165.02
  5. Step 5: Solve for x
    x = 39,863,557,165.02/206,831.52
  6. Step 6: Final answer
    x = 192,734.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.