Home / 100,115.56-150,178.33-29,988.19

Finding the Fourth Proportional to 100,115.56, 150,178.33 and 29,988.19

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Solution

The fourth proportional to 100,115.56, 150,178.33 and 29,988.19 is: 44,983.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,115.56 : 150,178.33 = 29,988.19 : x
  2. Step 2: Convert to fraction form
    100,115.56/150,178.33 = 29,988.19/x
  3. Step 3: Cross multiply
    100,115.56x = 150,178.33 × 29,988.19
  4. Step 4: Simplify right side
    100,115.56x = 4,503,576,293.92
  5. Step 5: Solve for x
    x = 4,503,576,293.92/100,115.56
  6. Step 6: Final answer
    x = 44,983.78

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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.