Home / 156,450.30-215,902.44-84,831.42

Finding the Fourth Proportional to 156,450.30, 215,902.44 and 84,831.42

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Solution

The fourth proportional to 156,450.30, 215,902.44 and 84,831.42 is: 117,067.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,450.30 : 215,902.44 = 84,831.42 : x
  2. Step 2: Convert to fraction form
    156,450.30/215,902.44 = 84,831.42/x
  3. Step 3: Cross multiply
    156,450.30x = 215,902.44 × 84,831.42
  4. Step 4: Simplify right side
    156,450.30x = 18,315,310,566.66
  5. Step 5: Solve for x
    x = 18,315,310,566.66/156,450.30
  6. Step 6: Final answer
    x = 117,067.92

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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.