Home / 143,840.16-215,620.92-55,025.28

Finding the Fourth Proportional to 143,840.16, 215,620.92 and 55,025.28

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Solution

The fourth proportional to 143,840.16, 215,620.92 and 55,025.28 is: 82,484.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,840.16 : 215,620.92 = 55,025.28 : x
  2. Step 2: Convert to fraction form
    143,840.16/215,620.92 = 55,025.28/x
  3. Step 3: Cross multiply
    143,840.16x = 215,620.92 × 55,025.28
  4. Step 4: Simplify right side
    143,840.16x = 11,864,601,496.86
  5. Step 5: Solve for x
    x = 11,864,601,496.86/143,840.16
  6. Step 6: Final answer
    x = 82,484.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.