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Finding the Fourth Proportional to 88,895.80, 133,343.70 and 66,863.80

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Solution

The fourth proportional to 88,895.80, 133,343.70 and 66,863.80 is: 100,295.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,895.80 : 133,343.70 = 66,863.80 : x
  2. Step 2: Convert to fraction form
    88,895.80/133,343.70 = 66,863.80/x
  3. Step 3: Cross multiply
    88,895.80x = 133,343.70 × 66,863.80
  4. Step 4: Simplify right side
    88,895.80x = 8,915,866,488.06
  5. Step 5: Solve for x
    x = 8,915,866,488.06/88,895.80
  6. Step 6: Final answer
    x = 100,295.70

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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.