Home / 76,163.20-114,244.80-67,998.40

Finding the Fourth Proportional to 76,163.20, 114,244.80 and 67,998.40

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Solution

The fourth proportional to 76,163.20, 114,244.80 and 67,998.40 is: 101,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,163.20 : 114,244.80 = 67,998.40 : x
  2. Step 2: Convert to fraction form
    76,163.20/114,244.80 = 67,998.40/x
  3. Step 3: Cross multiply
    76,163.20x = 114,244.80 × 67,998.40
  4. Step 4: Simplify right side
    76,163.20x = 7,768,463,608.32
  5. Step 5: Solve for x
    x = 7,768,463,608.32/76,163.20
  6. Step 6: Final answer
    x = 101,997.60

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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.