Home / 101,736.60-140,379.40-67,795.76

Finding the Fourth Proportional to 101,736.60, 140,379.40 and 67,795.76

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Solution

The fourth proportional to 101,736.60, 140,379.40 and 67,795.76 is: 93,546.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,736.60 : 140,379.40 = 67,795.76 : x
  2. Step 2: Convert to fraction form
    101,736.60/140,379.40 = 67,795.76/x
  3. Step 3: Cross multiply
    101,736.60x = 140,379.40 × 67,795.76
  4. Step 4: Simplify right side
    101,736.60x = 9,517,128,111.34
  5. Step 5: Solve for x
    x = 9,517,128,111.34/101,736.60
  6. Step 6: Final answer
    x = 93,546.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.