Home / 156,636.23-216,158.20-85,016.25

Finding the Fourth Proportional to 156,636.23, 216,158.20 and 85,016.25

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Solution

The fourth proportional to 156,636.23, 216,158.20 and 85,016.25 is: 117,322.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,636.23 : 216,158.20 = 85,016.25 : x
  2. Step 2: Convert to fraction form
    156,636.23/216,158.20 = 85,016.25/x
  3. Step 3: Cross multiply
    156,636.23x = 216,158.20 × 85,016.25
  4. Step 4: Simplify right side
    156,636.23x = 18,376,959,836.43
  5. Step 5: Solve for x
    x = 18,376,959,836.43/156,636.23
  6. Step 6: Final answer
    x = 117,322.54

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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.