Home / 156,218.22-215,580.06-84,596.60

Finding the Fourth Proportional to 156,218.22, 215,580.06 and 84,596.60

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Solution

The fourth proportional to 156,218.22, 215,580.06 and 84,596.60 is: 116,742.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,218.22 : 215,580.06 = 84,596.60 : x
  2. Step 2: Convert to fraction form
    156,218.22/215,580.06 = 84,596.60/x
  3. Step 3: Cross multiply
    156,218.22x = 215,580.06 × 84,596.60
  4. Step 4: Simplify right side
    156,218.22x = 18,237,340,103.80
  5. Step 5: Solve for x
    x = 18,237,340,103.80/156,218.22
  6. Step 6: Final answer
    x = 116,742.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.