Home / 104,811.67-156,734.62-77,844.92

Finding the Fourth Proportional to 104,811.67, 156,734.62 and 77,844.92

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Solution

The fourth proportional to 104,811.67, 156,734.62 and 77,844.92 is: 116,408.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,811.67 : 156,734.62 = 77,844.92 : x
  2. Step 2: Convert to fraction form
    104,811.67/156,734.62 = 77,844.92/x
  3. Step 3: Cross multiply
    104,811.67x = 156,734.62 × 77,844.92
  4. Step 4: Simplify right side
    104,811.67x = 12,200,993,955.13
  5. Step 5: Solve for x
    x = 12,200,993,955.13/104,811.67
  6. Step 6: Final answer
    x = 116,408.74

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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.