Home / 142,709.76-196,938.84-82,280.04

Finding the Fourth Proportional to 142,709.76, 196,938.84 and 82,280.04

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Solution

The fourth proportional to 142,709.76, 196,938.84 and 82,280.04 is: 113,546.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,709.76 : 196,938.84 = 82,280.04 : x
  2. Step 2: Convert to fraction form
    142,709.76/196,938.84 = 82,280.04/x
  3. Step 3: Cross multiply
    142,709.76x = 196,938.84 × 82,280.04
  4. Step 4: Simplify right side
    142,709.76x = 16,204,135,632.75
  5. Step 5: Solve for x
    x = 16,204,135,632.75/142,709.76
  6. Step 6: Final answer
    x = 113,546.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.