Home / 156,786.42-216,365.68-85,165.86

Finding the Fourth Proportional to 156,786.42, 216,365.68 and 85,165.86

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Solution

The fourth proportional to 156,786.42, 216,365.68 and 85,165.86 is: 117,529.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,786.42 : 216,365.68 = 85,165.86 : x
  2. Step 2: Convert to fraction form
    156,786.42/216,365.68 = 85,165.86/x
  3. Step 3: Cross multiply
    156,786.42x = 216,365.68 × 85,165.86
  4. Step 4: Simplify right side
    156,786.42x = 18,426,969,211.68
  5. Step 5: Solve for x
    x = 18,426,969,211.68/156,786.42
  6. Step 6: Final answer
    x = 117,529.12

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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.