Home / 81,844.20-122,766.30-76,012.20

Finding the Fourth Proportional to 81,844.20, 122,766.30 and 76,012.20

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Solution

The fourth proportional to 81,844.20, 122,766.30 and 76,012.20 is: 114,018.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,844.20 : 122,766.30 = 76,012.20 : x
  2. Step 2: Convert to fraction form
    81,844.20/122,766.30 = 76,012.20/x
  3. Step 3: Cross multiply
    81,844.20x = 122,766.30 × 76,012.20
  4. Step 4: Simplify right side
    81,844.20x = 9,331,736,548.86
  5. Step 5: Solve for x
    x = 9,331,736,548.86/81,844.20
  6. Step 6: Final answer
    x = 114,018.30

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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.