Home / 136,609.44-188,520.12-76,180.80

Finding the Fourth Proportional to 136,609.44, 188,520.12 and 76,180.80

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Solution

The fourth proportional to 136,609.44, 188,520.12 and 76,180.80 is: 105,129.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,609.44 : 188,520.12 = 76,180.80 : x
  2. Step 2: Convert to fraction form
    136,609.44/188,520.12 = 76,180.80/x
  3. Step 3: Cross multiply
    136,609.44x = 188,520.12 × 76,180.80
  4. Step 4: Simplify right side
    136,609.44x = 14,361,613,557.70
  5. Step 5: Solve for x
    x = 14,361,613,557.70/136,609.44
  6. Step 6: Final answer
    x = 105,129.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.