Home / 156,645.26-216,170.70-85,025.30

Finding the Fourth Proportional to 156,645.26, 216,170.70 and 85,025.30

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Solution

The fourth proportional to 156,645.26, 216,170.70 and 85,025.30 is: 117,335.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,645.26 : 216,170.70 = 85,025.30 : x
  2. Step 2: Convert to fraction form
    156,645.26/216,170.70 = 85,025.30/x
  3. Step 3: Cross multiply
    156,645.26x = 216,170.70 × 85,025.30
  4. Step 4: Simplify right side
    156,645.26x = 18,379,978,618.71
  5. Step 5: Solve for x
    x = 18,379,978,618.71/156,645.26
  6. Step 6: Final answer
    x = 117,335.04

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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.