Home / 101,268.12-139,758.19-55,950.08

Finding the Fourth Proportional to 101,268.12, 139,758.19 and 55,950.08

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Solution

The fourth proportional to 101,268.12, 139,758.19 and 55,950.08 is: 77,215.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,268.12 : 139,758.19 = 55,950.08 : x
  2. Step 2: Convert to fraction form
    101,268.12/139,758.19 = 55,950.08/x
  3. Step 3: Cross multiply
    101,268.12x = 139,758.19 × 55,950.08
  4. Step 4: Simplify right side
    101,268.12x = 7,819,481,072.49
  5. Step 5: Solve for x
    x = 7,819,481,072.49/101,268.12
  6. Step 6: Final answer
    x = 77,215.62

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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.