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Finding the Fourth Proportional to 133,085.69, 199,462.40 and 66,544.85

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Solution

The fourth proportional to 133,085.69, 199,462.40 and 66,544.85 is: 99,734.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,085.69 : 199,462.40 = 66,544.85 : x
  2. Step 2: Convert to fraction form
    133,085.69/199,462.40 = 66,544.85/x
  3. Step 3: Cross multiply
    133,085.69x = 199,462.40 × 66,544.85
  4. Step 4: Simplify right side
    133,085.69x = 13,273,195,155.92
  5. Step 5: Solve for x
    x = 13,273,195,155.92/133,085.69
  6. Step 6: Final answer
    x = 99,734.20

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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.