Home / 69,100.08-103,652.28-19,180.68

Finding the Fourth Proportional to 69,100.08, 103,652.28 and 19,180.68

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Solution

The fourth proportional to 69,100.08, 103,652.28 and 19,180.68 is: 28,771.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,100.08 : 103,652.28 = 19,180.68 : x
  2. Step 2: Convert to fraction form
    69,100.08/103,652.28 = 19,180.68/x
  3. Step 3: Cross multiply
    69,100.08x = 103,652.28 × 19,180.68
  4. Step 4: Simplify right side
    69,100.08x = 1,988,121,213.95
  5. Step 5: Solve for x
    x = 1,988,121,213.95/69,100.08
  6. Step 6: Final answer
    x = 28,771.62

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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.