Home / 156,857.11-216,464.81-85,238.33

Finding the Fourth Proportional to 156,857.11, 216,464.81 and 85,238.33

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Solution

The fourth proportional to 156,857.11, 216,464.81 and 85,238.33 is: 117,629.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,857.11 : 216,464.81 = 85,238.33 : x
  2. Step 2: Convert to fraction form
    156,857.11/216,464.81 = 85,238.33/x
  3. Step 3: Cross multiply
    156,857.11x = 216,464.81 × 85,238.33
  4. Step 4: Simplify right side
    156,857.11x = 18,451,097,399.65
  5. Step 5: Solve for x
    x = 18,451,097,399.65/156,857.11
  6. Step 6: Final answer
    x = 117,629.97

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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.