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Finding the Fourth Proportional to 100,208.61, 150,318.06 and 25,329.39

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Solution

The fourth proportional to 100,208.61, 150,318.06 and 25,329.39 is: 37,995.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,208.61 : 150,318.06 = 25,329.39 : x
  2. Step 2: Convert to fraction form
    100,208.61/150,318.06 = 25,329.39/x
  3. Step 3: Cross multiply
    100,208.61x = 150,318.06 × 25,329.39
  4. Step 4: Simplify right side
    100,208.61x = 3,807,465,095.12
  5. Step 5: Solve for x
    x = 3,807,465,095.12/100,208.61
  6. Step 6: Final answer
    x = 37,995.39

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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.