Home / 143,219.64-214,928.06-49,725.40

Finding the Fourth Proportional to 143,219.64, 214,928.06 and 49,725.40

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Solution

The fourth proportional to 143,219.64, 214,928.06 and 49,725.40 is: 74,622.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,219.64 : 214,928.06 = 49,725.40 : x
  2. Step 2: Convert to fraction form
    143,219.64/214,928.06 = 49,725.40/x
  3. Step 3: Cross multiply
    143,219.64x = 214,928.06 × 49,725.40
  4. Step 4: Simplify right side
    143,219.64x = 10,687,383,754.72
  5. Step 5: Solve for x
    x = 10,687,383,754.72/143,219.64
  6. Step 6: Final answer
    x = 74,622.33

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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.