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Finding the Fourth Proportional to 100,995.75, 151,493.63 and 38,666.25

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Solution

The fourth proportional to 100,995.75, 151,493.63 and 38,666.25 is: 57,999.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,995.75 : 151,493.63 = 38,666.25 : x
  2. Step 2: Convert to fraction form
    100,995.75/151,493.63 = 38,666.25/x
  3. Step 3: Cross multiply
    100,995.75x = 151,493.63 × 38,666.25
  4. Step 4: Simplify right side
    100,995.75x = 5,857,690,377.66
  5. Step 5: Solve for x
    x = 5,857,690,377.66/100,995.75
  6. Step 6: Final answer
    x = 57,999.38

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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.