Home / 156,847.32-216,448.86-85,227.60

Finding the Fourth Proportional to 156,847.32, 216,448.86 and 85,227.60

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Solution

The fourth proportional to 156,847.32, 216,448.86 and 85,227.60 is: 117,613.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,847.32 : 216,448.86 = 85,227.60 : x
  2. Step 2: Convert to fraction form
    156,847.32/216,448.86 = 85,227.60/x
  3. Step 3: Cross multiply
    156,847.32x = 216,448.86 × 85,227.60
  4. Step 4: Simplify right side
    156,847.32x = 18,447,416,860.54
  5. Step 5: Solve for x
    x = 18,447,416,860.54/156,847.32
  6. Step 6: Final answer
    x = 117,613.85

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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.