Home / 156,851.92-216,457.02-85,231.96

Finding the Fourth Proportional to 156,851.92, 216,457.02 and 85,231.96

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Solution

The fourth proportional to 156,851.92, 216,457.02 and 85,231.96 is: 117,620.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,851.92 : 216,457.02 = 85,231.96 : x
  2. Step 2: Convert to fraction form
    156,851.92/216,457.02 = 85,231.96/x
  3. Step 3: Cross multiply
    156,851.92x = 216,457.02 × 85,231.96
  4. Step 4: Simplify right side
    156,851.92x = 18,449,056,070.36
  5. Step 5: Solve for x
    x = 18,449,056,070.36/156,851.92
  6. Step 6: Final answer
    x = 117,620.85

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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.