Home / 143,512.02-215,268.21-68,614.56

Finding the Fourth Proportional to 143,512.02, 215,268.21 and 68,614.56

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Solution

The fourth proportional to 143,512.02, 215,268.21 and 68,614.56 is: 102,921.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,512.02 : 215,268.21 = 68,614.56 : x
  2. Step 2: Convert to fraction form
    143,512.02/215,268.21 = 68,614.56/x
  3. Step 3: Cross multiply
    143,512.02x = 215,268.21 × 68,614.56
  4. Step 4: Simplify right side
    143,512.02x = 14,770,533,511.14
  5. Step 5: Solve for x
    x = 14,770,533,511.14/143,512.02
  6. Step 6: Final answer
    x = 102,921.93

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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.