Home / 197,789.15-272,949.86-107,145.11

Finding the Fourth Proportional to 197,789.15, 272,949.86 and 107,145.11

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Solution

The fourth proportional to 197,789.15, 272,949.86 and 107,145.11 is: 147,860.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,789.15 : 272,949.86 = 107,145.11 : x
  2. Step 2: Convert to fraction form
    197,789.15/272,949.86 = 107,145.11/x
  3. Step 3: Cross multiply
    197,789.15x = 272,949.86 × 107,145.11
  4. Step 4: Simplify right side
    197,789.15x = 29,245,242,774.18
  5. Step 5: Solve for x
    x = 29,245,242,774.18/197,789.15
  6. Step 6: Final answer
    x = 147,860.70

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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.