Home / 197,680.71-272,799.55-107,036.73

Finding the Fourth Proportional to 197,680.71, 272,799.55 and 107,036.73

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Solution

The fourth proportional to 197,680.71, 272,799.55 and 107,036.73 is: 147,710.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,680.71 : 272,799.55 = 107,036.73 : x
  2. Step 2: Convert to fraction form
    197,680.71/272,799.55 = 107,036.73/x
  3. Step 3: Cross multiply
    197,680.71x = 272,799.55 × 107,036.73
  4. Step 4: Simplify right side
    197,680.71x = 29,199,571,911.27
  5. Step 5: Solve for x
    x = 29,199,571,911.27/197,680.71
  6. Step 6: Final answer
    x = 147,710.78

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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.