Home / 156,633.36-215,990.60-92,958.86

Finding the Fourth Proportional to 156,633.36, 215,990.60 and 92,958.86

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Solution

The fourth proportional to 156,633.36, 215,990.60 and 92,958.86 is: 128,186.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,633.36 : 215,990.60 = 92,958.86 : x
  2. Step 2: Convert to fraction form
    156,633.36/215,990.60 = 92,958.86/x
  3. Step 3: Cross multiply
    156,633.36x = 215,990.60 × 92,958.86
  4. Step 4: Simplify right side
    156,633.36x = 20,078,238,401.97
  5. Step 5: Solve for x
    x = 20,078,238,401.97/156,633.36
  6. Step 6: Final answer
    x = 128,186.22

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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.