Home / 192,609.40-288,914.10-129,623.80

Finding the Fourth Proportional to 192,609.40, 288,914.10 and 129,623.80

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Solution

The fourth proportional to 192,609.40, 288,914.10 and 129,623.80 is: 194,435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,609.40 : 288,914.10 = 129,623.80 : x
  2. Step 2: Convert to fraction form
    192,609.40/288,914.10 = 129,623.80/x
  3. Step 3: Cross multiply
    192,609.40x = 288,914.10 × 129,623.80
  4. Step 4: Simplify right side
    192,609.40x = 37,450,143,515.58
  5. Step 5: Solve for x
    x = 37,450,143,515.58/192,609.40
  6. Step 6: Final answer
    x = 194,435.70

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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.