Home / 107,518.82-161,280.45-39,128.03

Finding the Fourth Proportional to 107,518.82, 161,280.45 and 39,128.03

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Solution

The fourth proportional to 107,518.82, 161,280.45 and 39,128.03 is: 58,692.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,518.82 : 161,280.45 = 39,128.03 : x
  2. Step 2: Convert to fraction form
    107,518.82/161,280.45 = 39,128.03/x
  3. Step 3: Cross multiply
    107,518.82x = 161,280.45 × 39,128.03
  4. Step 4: Simplify right side
    107,518.82x = 6,310,586,286.01
  5. Step 5: Solve for x
    x = 6,310,586,286.01/107,518.82
  6. Step 6: Final answer
    x = 58,692.85

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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.