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Finding the Fourth Proportional to 100,377.87, 150,435.59 and 75,220.17

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Solution

The fourth proportional to 100,377.87, 150,435.59 and 75,220.17 is: 112,731.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,377.87 : 150,435.59 = 75,220.17 : x
  2. Step 2: Convert to fraction form
    100,377.87/150,435.59 = 75,220.17/x
  3. Step 3: Cross multiply
    100,377.87x = 150,435.59 × 75,220.17
  4. Step 4: Simplify right side
    100,377.87x = 11,315,790,277.75
  5. Step 5: Solve for x
    x = 11,315,790,277.75/100,377.87
  6. Step 6: Final answer
    x = 112,731.92

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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.