Home / 127,868.55-191,858.15-68,635.05

Finding the Fourth Proportional to 127,868.55, 191,858.15 and 68,635.05

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Solution

The fourth proportional to 127,868.55, 191,858.15 and 68,635.05 is: 102,982.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,868.55 : 191,858.15 = 68,635.05 : x
  2. Step 2: Convert to fraction form
    127,868.55/191,858.15 = 68,635.05/x
  3. Step 3: Cross multiply
    127,868.55x = 191,858.15 × 68,635.05
  4. Step 4: Simplify right side
    127,868.55x = 13,168,192,415.69
  5. Step 5: Solve for x
    x = 13,168,192,415.69/127,868.55
  6. Step 6: Final answer
    x = 102,982.27

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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.