Home / 197,760.28-272,909.64-107,115.88

Finding the Fourth Proportional to 197,760.28, 272,909.64 and 107,115.88

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Solution

The fourth proportional to 197,760.28, 272,909.64 and 107,115.88 is: 147,820.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,760.28 : 272,909.64 = 107,115.88 : x
  2. Step 2: Convert to fraction form
    197,760.28/272,909.64 = 107,115.88/x
  3. Step 3: Cross multiply
    197,760.28x = 272,909.64 × 107,115.88
  4. Step 4: Simplify right side
    197,760.28x = 29,232,956,249.08
  5. Step 5: Solve for x
    x = 29,232,956,249.08/197,760.28
  6. Step 6: Final answer
    x = 147,820.16

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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.