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Finding the Fourth Proportional to 156,015, 215,213.22 and 95,614.92

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Solution

The fourth proportional to 156,015, 215,213.22 and 95,614.92 is: 131,894.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,015 : 215,213.22 = 95,614.92 : x
  2. Step 2: Convert to fraction form
    156,015/215,213.22 = 95,614.92/x
  3. Step 3: Cross multiply
    156,015x = 215,213.22 × 95,614.92
  4. Step 4: Simplify right side
    156,015x = 20,577,594,813.24
  5. Step 5: Solve for x
    x = 20,577,594,813.24/156,015
  6. Step 6: Final answer
    x = 131,894.98

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1.5x scale

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.