Home / 126,892.76-190,425.27-67,770.86

Finding the Fourth Proportional to 126,892.76, 190,425.27 and 67,770.86

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Solution

The fourth proportional to 126,892.76, 190,425.27 and 67,770.86 is: 101,702.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,892.76 : 190,425.27 = 67,770.86 : x
  2. Step 2: Convert to fraction form
    126,892.76/190,425.27 = 67,770.86/x
  3. Step 3: Cross multiply
    126,892.76x = 190,425.27 × 67,770.86
  4. Step 4: Simplify right side
    126,892.76x = 12,905,284,313.63
  5. Step 5: Solve for x
    x = 12,905,284,313.63/126,892.76
  6. Step 6: Final answer
    x = 101,702.29

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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.