Home / 156,622.82-216,132.10-85,002.21

Finding the Fourth Proportional to 156,622.82, 216,132.10 and 85,002.21

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Solution

The fourth proportional to 156,622.82, 216,132.10 and 85,002.21 is: 117,299.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,622.82 : 216,132.10 = 85,002.21 : x
  2. Step 2: Convert to fraction form
    156,622.82/216,132.10 = 85,002.21/x
  3. Step 3: Cross multiply
    156,622.82x = 216,132.10 × 85,002.21
  4. Step 4: Simplify right side
    156,622.82x = 18,371,705,939.44
  5. Step 5: Solve for x
    x = 18,371,705,939.44/156,622.82
  6. Step 6: Final answer
    x = 117,299.04

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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.