Home / 140,012.52-209,933.94-55,785.48

Finding the Fourth Proportional to 140,012.52, 209,933.94 and 55,785.48

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Solution

The fourth proportional to 140,012.52, 209,933.94 and 55,785.48 is: 83,644.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,012.52 : 209,933.94 = 55,785.48 : x
  2. Step 2: Convert to fraction form
    140,012.52/209,933.94 = 55,785.48/x
  3. Step 3: Cross multiply
    140,012.52x = 209,933.94 × 55,785.48
  4. Step 4: Simplify right side
    140,012.52x = 11,711,265,611.19
  5. Step 5: Solve for x
    x = 11,711,265,611.19/140,012.52
  6. Step 6: Final answer
    x = 83,644.42

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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.