Home / 101,579.29-140,109.79-69,692.83

Finding the Fourth Proportional to 101,579.29, 140,109.79 and 69,692.83

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Solution

The fourth proportional to 101,579.29, 140,109.79 and 69,692.83 is: 96,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,579.29 : 140,109.79 = 69,692.83 : x
  2. Step 2: Convert to fraction form
    101,579.29/140,109.79 = 69,692.83/x
  3. Step 3: Cross multiply
    101,579.29x = 140,109.79 × 69,692.83
  4. Step 4: Simplify right side
    101,579.29x = 9,764,647,775.81
  5. Step 5: Solve for x
    x = 9,764,647,775.81/101,579.29
  6. Step 6: Final answer
    x = 96,128.33

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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.