Home / 197,776.78-272,933.26-107,132.74

Finding the Fourth Proportional to 197,776.78, 272,933.26 and 107,132.74

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Solution

The fourth proportional to 197,776.78, 272,933.26 and 107,132.74 is: 147,843.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,776.78 : 272,933.26 = 107,132.74 : x
  2. Step 2: Convert to fraction form
    197,776.78/272,933.26 = 107,132.74/x
  3. Step 3: Cross multiply
    197,776.78x = 272,933.26 × 107,132.74
  4. Step 4: Simplify right side
    197,776.78x = 29,240,087,980.93
  5. Step 5: Solve for x
    x = 29,240,087,980.93/197,776.78
  6. Step 6: Final answer
    x = 147,843.89

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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.