Home / 127,961.06-191,941.59-65,591.78

Finding the Fourth Proportional to 127,961.06, 191,941.59 and 65,591.78

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Solution

The fourth proportional to 127,961.06, 191,941.59 and 65,591.78 is: 98,387.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,961.06 : 191,941.59 = 65,591.78 : x
  2. Step 2: Convert to fraction form
    127,961.06/191,941.59 = 65,591.78/x
  3. Step 3: Cross multiply
    127,961.06x = 191,941.59 × 65,591.78
  4. Step 4: Simplify right side
    127,961.06x = 12,589,790,544.13
  5. Step 5: Solve for x
    x = 12,589,790,544.13/127,961.06
  6. Step 6: Final answer
    x = 98,387.67

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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.