Home / 133,086.05-199,462.94-66,545.21

Finding the Fourth Proportional to 133,086.05, 199,462.94 and 66,545.21

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Solution

The fourth proportional to 133,086.05, 199,462.94 and 66,545.21 is: 99,734.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,086.05 : 199,462.94 = 66,545.21 : x
  2. Step 2: Convert to fraction form
    133,086.05/199,462.94 = 66,545.21/x
  3. Step 3: Cross multiply
    133,086.05x = 199,462.94 × 66,545.21
  4. Step 4: Simplify right side
    133,086.05x = 13,273,303,084.25
  5. Step 5: Solve for x
    x = 13,273,303,084.25/133,086.05
  6. Step 6: Final answer
    x = 99,734.74

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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.