Home / 82,224.40-123,336.60-78,998.80

Finding the Fourth Proportional to 82,224.40, 123,336.60 and 78,998.80

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Solution

The fourth proportional to 82,224.40, 123,336.60 and 78,998.80 is: 118,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,224.40 : 123,336.60 = 78,998.80 : x
  2. Step 2: Convert to fraction form
    82,224.40/123,336.60 = 78,998.80/x
  3. Step 3: Cross multiply
    82,224.40x = 123,336.60 × 78,998.80
  4. Step 4: Simplify right side
    82,224.40x = 9,743,443,396.08
  5. Step 5: Solve for x
    x = 9,743,443,396.08/82,224.40
  6. Step 6: Final answer
    x = 118,498.20

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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.