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Finding the Fourth Proportional to 133,089.81, 199,468.57 and 66,548.97

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Solution

The fourth proportional to 133,089.81, 199,468.57 and 66,548.97 is: 99,740.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,089.81 : 199,468.57 = 66,548.97 : x
  2. Step 2: Convert to fraction form
    133,089.81/199,468.57 = 66,548.97/x
  3. Step 3: Cross multiply
    133,089.81x = 199,468.57 × 66,548.97
  4. Step 4: Simplify right side
    133,089.81x = 13,274,427,880.87
  5. Step 5: Solve for x
    x = 13,274,427,880.87/133,089.81
  6. Step 6: Final answer
    x = 99,740.38

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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.