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Finding the Fourth Proportional to 192,120.75, 288,182.75 and 67,461.75

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Solution

The fourth proportional to 192,120.75, 288,182.75 and 67,461.75 is: 101,193.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,120.75 : 288,182.75 = 67,461.75 : x
  2. Step 2: Convert to fraction form
    192,120.75/288,182.75 = 67,461.75/x
  3. Step 3: Cross multiply
    192,120.75x = 288,182.75 × 67,461.75
  4. Step 4: Simplify right side
    192,120.75x = 19,441,312,297.50
  5. Step 5: Solve for x
    x = 19,441,312,297.50/192,120.75
  6. Step 6: Final answer
    x = 101,193.19

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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.