Home / 76,137.93-113,958.50-68,863.05

Finding the Fourth Proportional to 76,137.93, 113,958.50 and 68,863.05

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Solution

The fourth proportional to 76,137.93, 113,958.50 and 68,863.05 is: 103,069.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,137.93 : 113,958.50 = 68,863.05 : x
  2. Step 2: Convert to fraction form
    76,137.93/113,958.50 = 68,863.05/x
  3. Step 3: Cross multiply
    76,137.93x = 113,958.50 × 68,863.05
  4. Step 4: Simplify right side
    76,137.93x = 7,847,529,539.11
  5. Step 5: Solve for x
    x = 7,847,529,539.11/76,137.93
  6. Step 6: Final answer
    x = 103,069.91

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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.