Home / 197,458.72-296,126.64-66,100

Finding the Fourth Proportional to 197,458.72, 296,126.64 and 66,100

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Solution

The fourth proportional to 197,458.72, 296,126.64 and 66,100 is: 99,129.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,458.72 : 296,126.64 = 66,100 : x
  2. Step 2: Convert to fraction form
    197,458.72/296,126.64 = 66,100/x
  3. Step 3: Cross multiply
    197,458.72x = 296,126.64 × 66,100
  4. Step 4: Simplify right side
    197,458.72x = 19,573,970,904
  5. Step 5: Solve for x
    x = 19,573,970,904/197,458.72
  6. Step 6: Final answer
    x = 99,129.43

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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.