Home / 197,330.92-272,311.14-107,905

Finding the Fourth Proportional to 197,330.92, 272,311.14 and 107,905

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Solution

The fourth proportional to 197,330.92, 272,311.14 and 107,905 is: 148,905.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,330.92 : 272,311.14 = 107,905 : x
  2. Step 2: Convert to fraction form
    197,330.92/272,311.14 = 107,905/x
  3. Step 3: Cross multiply
    197,330.92x = 272,311.14 × 107,905
  4. Step 4: Simplify right side
    197,330.92x = 29,383,733,561.70
  5. Step 5: Solve for x
    x = 29,383,733,561.70/197,330.92
  6. Step 6: Final answer
    x = 148,905.88

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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.