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Finding the Fourth Proportional to 69,099.97, 103,657.37 and 19,180.28

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Solution

The fourth proportional to 69,099.97, 103,657.37 and 19,180.28 is: 28,772.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,099.97 : 103,657.37 = 19,180.28 : x
  2. Step 2: Convert to fraction form
    69,099.97/103,657.37 = 19,180.28/x
  3. Step 3: Cross multiply
    69,099.97x = 103,657.37 × 19,180.28
  4. Step 4: Simplify right side
    69,099.97x = 1,988,177,155.19
  5. Step 5: Solve for x
    x = 1,988,177,155.19/69,099.97
  6. Step 6: Final answer
    x = 28,772.47

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1.5x scale

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.