Home / 75,138.14-103,692.25-41,148.06

Finding the Fourth Proportional to 75,138.14, 103,692.25 and 41,148.06

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Solution

The fourth proportional to 75,138.14, 103,692.25 and 41,148.06 is: 56,785.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,138.14 : 103,692.25 = 41,148.06 : x
  2. Step 2: Convert to fraction form
    75,138.14/103,692.25 = 41,148.06/x
  3. Step 3: Cross multiply
    75,138.14x = 103,692.25 × 41,148.06
  4. Step 4: Simplify right side
    75,138.14x = 4,266,734,924.54
  5. Step 5: Solve for x
    x = 4,266,734,924.54/75,138.14
  6. Step 6: Final answer
    x = 56,785.21

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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.