Home / 100,490.46-150,735.69-38,160.96

Finding the Fourth Proportional to 100,490.46, 150,735.69 and 38,160.96

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Solution

The fourth proportional to 100,490.46, 150,735.69 and 38,160.96 is: 57,241.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,490.46 : 150,735.69 = 38,160.96 : x
  2. Step 2: Convert to fraction form
    100,490.46/150,735.69 = 38,160.96/x
  3. Step 3: Cross multiply
    100,490.46x = 150,735.69 × 38,160.96
  4. Step 4: Simplify right side
    100,490.46x = 5,752,218,636.66
  5. Step 5: Solve for x
    x = 5,752,218,636.66/100,490.46
  6. Step 6: Final answer
    x = 57,241.44

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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.