Home / 215,566.80-323,196.60-82,395.60

Finding the Fourth Proportional to 215,566.80, 323,196.60 and 82,395.60

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Solution

The fourth proportional to 215,566.80, 323,196.60 and 82,395.60 is: 123,534.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,566.80 : 323,196.60 = 82,395.60 : x
  2. Step 2: Convert to fraction form
    215,566.80/323,196.60 = 82,395.60/x
  3. Step 3: Cross multiply
    215,566.80x = 323,196.60 × 82,395.60
  4. Step 4: Simplify right side
    215,566.80x = 26,629,977,774.96
  5. Step 5: Solve for x
    x = 26,629,977,774.96/215,566.80
  6. Step 6: Final answer
    x = 123,534.69

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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.