Home / 192,619.80-288,929.70-129,634.20

Finding the Fourth Proportional to 192,619.80, 288,929.70 and 129,634.20

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Solution

The fourth proportional to 192,619.80, 288,929.70 and 129,634.20 is: 194,451.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,619.80 : 288,929.70 = 129,634.20 : x
  2. Step 2: Convert to fraction form
    192,619.80/288,929.70 = 129,634.20/x
  3. Step 3: Cross multiply
    192,619.80x = 288,929.70 × 129,634.20
  4. Step 4: Simplify right side
    192,619.80x = 37,455,170,515.74
  5. Step 5: Solve for x
    x = 37,455,170,515.74/192,619.80
  6. Step 6: Final answer
    x = 194,451.30

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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.