Home / 156,724.11-216,273.29-85,102.56

Finding the Fourth Proportional to 156,724.11, 216,273.29 and 85,102.56

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Solution

The fourth proportional to 156,724.11, 216,273.29 and 85,102.56 is: 117,438.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,724.11 : 216,273.29 = 85,102.56 : x
  2. Step 2: Convert to fraction form
    156,724.11/216,273.29 = 85,102.56/x
  3. Step 3: Cross multiply
    156,724.11x = 216,273.29 × 85,102.56
  4. Step 4: Simplify right side
    156,724.11x = 18,405,410,213.11
  5. Step 5: Solve for x
    x = 18,405,410,213.11/156,724.11
  6. Step 6: Final answer
    x = 117,438.28

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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.