Home / 143,928.04-215,785.42-68,976.82

Finding the Fourth Proportional to 143,928.04, 215,785.42 and 68,976.82

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Solution

The fourth proportional to 143,928.04, 215,785.42 and 68,976.82 is: 103,414.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,928.04 : 215,785.42 = 68,976.82 : x
  2. Step 2: Convert to fraction form
    143,928.04/215,785.42 = 68,976.82/x
  3. Step 3: Cross multiply
    143,928.04x = 215,785.42 × 68,976.82
  4. Step 4: Simplify right side
    143,928.04x = 14,884,192,073.96
  5. Step 5: Solve for x
    x = 14,884,192,073.96/143,928.04
  6. Step 6: Final answer
    x = 103,414.12

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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.