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Finding the Fourth Proportional to 131,998.97, 182,157.47 and 74,649.56

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Solution

The fourth proportional to 131,998.97, 182,157.47 and 74,649.56 is: 103,015.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,998.97 : 182,157.47 = 74,649.56 : x
  2. Step 2: Convert to fraction form
    131,998.97/182,157.47 = 74,649.56/x
  3. Step 3: Cross multiply
    131,998.97x = 182,157.47 × 74,649.56
  4. Step 4: Simplify right side
    131,998.97x = 13,597,973,982.11
  5. Step 5: Solve for x
    x = 13,597,973,982.11/131,998.97
  6. Step 6: Final answer
    x = 103,015.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.