Home / 197,320.75-271,930.60-142,780.61

Finding the Fourth Proportional to 197,320.75, 271,930.60 and 142,780.61

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Solution

The fourth proportional to 197,320.75, 271,930.60 and 142,780.61 is: 196,768.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,320.75 : 271,930.60 = 142,780.61 : x
  2. Step 2: Convert to fraction form
    197,320.75/271,930.60 = 142,780.61/x
  3. Step 3: Cross multiply
    197,320.75x = 271,930.60 × 142,780.61
  4. Step 4: Simplify right side
    197,320.75x = 38,826,416,945.67
  5. Step 5: Solve for x
    x = 38,826,416,945.67/197,320.75
  6. Step 6: Final answer
    x = 196,768.04

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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.