Home / 156,622.28-216,140.82-85,003.16

Finding the Fourth Proportional to 156,622.28, 216,140.82 and 85,003.16

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Solution

The fourth proportional to 156,622.28, 216,140.82 and 85,003.16 is: 117,305.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,622.28 : 216,140.82 = 85,003.16 : x
  2. Step 2: Convert to fraction form
    156,622.28/216,140.82 = 85,003.16/x
  3. Step 3: Cross multiply
    156,622.28x = 216,140.82 × 85,003.16
  4. Step 4: Simplify right side
    156,622.28x = 18,372,652,704.99
  5. Step 5: Solve for x
    x = 18,372,652,704.99/156,622.28
  6. Step 6: Final answer
    x = 117,305.49

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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.