Home / 76,163.10-113,920.65-68,322.30

Finding the Fourth Proportional to 76,163.10, 113,920.65 and 68,322.30

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Solution

The fourth proportional to 76,163.10, 113,920.65 and 68,322.30 is: 102,192.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,163.10 : 113,920.65 = 68,322.30 : x
  2. Step 2: Convert to fraction form
    76,163.10/113,920.65 = 68,322.30/x
  3. Step 3: Cross multiply
    76,163.10x = 113,920.65 × 68,322.30
  4. Step 4: Simplify right side
    76,163.10x = 7,783,320,825.50
  5. Step 5: Solve for x
    x = 7,783,320,825.50/76,163.10
  6. Step 6: Final answer
    x = 102,192.80

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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.