Home / 100,939.33-151,432.45-34,380.03

Finding the Fourth Proportional to 100,939.33, 151,432.45 and 34,380.03

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Solution

The fourth proportional to 100,939.33, 151,432.45 and 34,380.03 is: 51,578.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,939.33 : 151,432.45 = 34,380.03 : x
  2. Step 2: Convert to fraction form
    100,939.33/151,432.45 = 34,380.03/x
  3. Step 3: Cross multiply
    100,939.33x = 151,432.45 × 34,380.03
  4. Step 4: Simplify right side
    100,939.33x = 5,206,252,088.02
  5. Step 5: Solve for x
    x = 5,206,252,088.02/100,939.33
  6. Step 6: Final answer
    x = 51,578.03

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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.