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Finding the Fourth Proportional to 138,241.35, 207,371.36 and 47,019.59

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Solution

The fourth proportional to 138,241.35, 207,371.36 and 47,019.59 is: 70,532.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,241.35 : 207,371.36 = 47,019.59 : x
  2. Step 2: Convert to fraction form
    138,241.35/207,371.36 = 47,019.59/x
  3. Step 3: Cross multiply
    138,241.35x = 207,371.36 × 47,019.59
  4. Step 4: Simplify right side
    138,241.35x = 9,750,515,052.99
  5. Step 5: Solve for x
    x = 9,750,515,052.99/138,241.35
  6. Step 6: Final answer
    x = 70,532.55

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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.