Home / 127,968.11-191,989.05-39,234.70

Finding the Fourth Proportional to 127,968.11, 191,989.05 and 39,234.70

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Solution

The fourth proportional to 127,968.11, 191,989.05 and 39,234.70 is: 58,863.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,968.11 : 191,989.05 = 39,234.70 : x
  2. Step 2: Convert to fraction form
    127,968.11/191,989.05 = 39,234.70/x
  3. Step 3: Cross multiply
    127,968.11x = 191,989.05 × 39,234.70
  4. Step 4: Simplify right side
    127,968.11x = 7,532,632,300.06
  5. Step 5: Solve for x
    x = 7,532,632,300.06/127,968.11
  6. Step 6: Final answer
    x = 58,863.36

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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.