Home / 156,645.27-216,170.64-85,025.27

Finding the Fourth Proportional to 156,645.27, 216,170.64 and 85,025.27

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Solution

The fourth proportional to 156,645.27, 216,170.64 and 85,025.27 is: 117,334.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,645.27 : 216,170.64 = 85,025.27 : x
  2. Step 2: Convert to fraction form
    156,645.27/216,170.64 = 85,025.27/x
  3. Step 3: Cross multiply
    156,645.27x = 216,170.64 × 85,025.27
  4. Step 4: Simplify right side
    156,645.27x = 18,379,967,572.50
  5. Step 5: Solve for x
    x = 18,379,967,572.50/156,645.27
  6. Step 6: Final answer
    x = 117,334.97

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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.