Home / 197,518.48-296,211.90-85,128.52

Finding the Fourth Proportional to 197,518.48, 296,211.90 and 85,128.52

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Solution

The fourth proportional to 197,518.48, 296,211.90 and 85,128.52 is: 127,664.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,518.48 : 296,211.90 = 85,128.52 : x
  2. Step 2: Convert to fraction form
    197,518.48/296,211.90 = 85,128.52/x
  3. Step 3: Cross multiply
    197,518.48x = 296,211.90 × 85,128.52
  4. Step 4: Simplify right side
    197,518.48x = 25,216,080,653.39
  5. Step 5: Solve for x
    x = 25,216,080,653.39/197,518.48
  6. Step 6: Final answer
    x = 127,664.41

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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.