Home / 143,921.11-215,880.14-49,150.21

Finding the Fourth Proportional to 143,921.11, 215,880.14 and 49,150.21

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Solution

The fourth proportional to 143,921.11, 215,880.14 and 49,150.21 is: 73,724.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,921.11 : 215,880.14 = 49,150.21 : x
  2. Step 2: Convert to fraction form
    143,921.11/215,880.14 = 49,150.21/x
  3. Step 3: Cross multiply
    143,921.11x = 215,880.14 × 49,150.21
  4. Step 4: Simplify right side
    143,921.11x = 10,610,553,799.00
  5. Step 5: Solve for x
    x = 10,610,553,799.00/143,921.11
  6. Step 6: Final answer
    x = 73,724.79

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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.