Home / 197,783.06-272,873.48-111,729.47

Finding the Fourth Proportional to 197,783.06, 272,873.48 and 111,729.47

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Solution

The fourth proportional to 197,783.06, 272,873.48 and 111,729.47 is: 154,148.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,783.06 : 272,873.48 = 111,729.47 : x
  2. Step 2: Convert to fraction form
    197,783.06/272,873.48 = 111,729.47/x
  3. Step 3: Cross multiply
    197,783.06x = 272,873.48 × 111,729.47
  4. Step 4: Simplify right side
    197,783.06x = 30,488,007,374.44
  5. Step 5: Solve for x
    x = 30,488,007,374.44/197,783.06
  6. Step 6: Final answer
    x = 154,148.73

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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.