Home / 101,299.20-139,801.31-55,986.02

Finding the Fourth Proportional to 101,299.20, 139,801.31 and 55,986.02

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Solution

The fourth proportional to 101,299.20, 139,801.31 and 55,986.02 is: 77,265.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,299.20 : 139,801.31 = 55,986.02 : x
  2. Step 2: Convert to fraction form
    101,299.20/139,801.31 = 55,986.02/x
  3. Step 3: Cross multiply
    101,299.20x = 139,801.31 × 55,986.02
  4. Step 4: Simplify right side
    101,299.20x = 7,826,919,479.33
  5. Step 5: Solve for x
    x = 7,826,919,479.33/101,299.20
  6. Step 6: Final answer
    x = 77,265.37

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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.