Home / 127,912.12-191,885.67-43,649.62

Finding the Fourth Proportional to 127,912.12, 191,885.67 and 43,649.62

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Solution

The fourth proportional to 127,912.12, 191,885.67 and 43,649.62 is: 65,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,912.12 : 191,885.67 = 43,649.62 : x
  2. Step 2: Convert to fraction form
    127,912.12/191,885.67 = 43,649.62/x
  3. Step 3: Cross multiply
    127,912.12x = 191,885.67 × 43,649.62
  4. Step 4: Simplify right side
    127,912.12x = 8,375,736,578.95
  5. Step 5: Solve for x
    x = 8,375,736,578.95/127,912.12
  6. Step 6: Final answer
    x = 65,480.40

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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.