Home / 197,748.64-296,622.78-79,420

Finding the Fourth Proportional to 197,748.64, 296,622.78 and 79,420

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Solution

The fourth proportional to 197,748.64, 296,622.78 and 79,420 is: 119,129.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,748.64 : 296,622.78 = 79,420 : x
  2. Step 2: Convert to fraction form
    197,748.64/296,622.78 = 79,420/x
  3. Step 3: Cross multiply
    197,748.64x = 296,622.78 × 79,420
  4. Step 4: Simplify right side
    197,748.64x = 23,557,781,187.60
  5. Step 5: Solve for x
    x = 23,557,781,187.60/197,748.64
  6. Step 6: Final answer
    x = 119,129.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.