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Finding the Fourth Proportional to 133,990.53, 201,015.96 and 45,241.68

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Solution

The fourth proportional to 133,990.53, 201,015.96 and 45,241.68 is: 67,872.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,990.53 : 201,015.96 = 45,241.68 : x
  2. Step 2: Convert to fraction form
    133,990.53/201,015.96 = 45,241.68/x
  3. Step 3: Cross multiply
    133,990.53x = 201,015.96 × 45,241.68
  4. Step 4: Simplify right side
    133,990.53x = 9,094,299,737.21
  5. Step 5: Solve for x
    x = 9,094,299,737.21/133,990.53
  6. Step 6: Final answer
    x = 67,872.71

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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.