Home / 156,655.45-216,183.12-85,035.43

Finding the Fourth Proportional to 156,655.45, 216,183.12 and 85,035.43

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Solution

The fourth proportional to 156,655.45, 216,183.12 and 85,035.43 is: 117,348.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,655.45 : 216,183.12 = 85,035.43 : x
  2. Step 2: Convert to fraction form
    156,655.45/216,183.12 = 85,035.43/x
  3. Step 3: Cross multiply
    156,655.45x = 216,183.12 × 85,035.43
  4. Step 4: Simplify right side
    156,655.45x = 18,383,224,567.94
  5. Step 5: Solve for x
    x = 18,383,224,567.94/156,655.45
  6. Step 6: Final answer
    x = 117,348.13

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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.