Home / 197,425.78-272,429.39-120,909.94

Finding the Fourth Proportional to 197,425.78, 272,429.39 and 120,909.94

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Solution

The fourth proportional to 197,425.78, 272,429.39 and 120,909.94 is: 166,844.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,425.78 : 272,429.39 = 120,909.94 : x
  2. Step 2: Convert to fraction form
    197,425.78/272,429.39 = 120,909.94/x
  3. Step 3: Cross multiply
    197,425.78x = 272,429.39 × 120,909.94
  4. Step 4: Simplify right side
    197,425.78x = 32,939,420,820.34
  5. Step 5: Solve for x
    x = 32,939,420,820.34/197,425.78
  6. Step 6: Final answer
    x = 166,844.58

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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.