Home / 197,691.96-272,834.44-112,821.78

Finding the Fourth Proportional to 197,691.96, 272,834.44 and 112,821.78

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Solution

The fourth proportional to 197,691.96, 272,834.44 and 112,821.78 is: 155,705.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,691.96 : 272,834.44 = 112,821.78 : x
  2. Step 2: Convert to fraction form
    197,691.96/272,834.44 = 112,821.78/x
  3. Step 3: Cross multiply
    197,691.96x = 272,834.44 × 112,821.78
  4. Step 4: Simplify right side
    197,691.96x = 30,781,667,166.10
  5. Step 5: Solve for x
    x = 30,781,667,166.10/197,691.96
  6. Step 6: Final answer
    x = 155,705.21

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1.5x scale

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.