Home / 197,964.60-296,985.30-85,644.60

Finding the Fourth Proportional to 197,964.60, 296,985.30 and 85,644.60

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Solution

The fourth proportional to 197,964.60, 296,985.30 and 85,644.60 is: 128,483.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,964.60 : 296,985.30 = 85,644.60 : x
  2. Step 2: Convert to fraction form
    197,964.60/296,985.30 = 85,644.60/x
  3. Step 3: Cross multiply
    197,964.60x = 296,985.30 × 85,644.60
  4. Step 4: Simplify right side
    197,964.60x = 25,435,187,224.38
  5. Step 5: Solve for x
    x = 25,435,187,224.38/197,964.60
  6. Step 6: Final answer
    x = 128,483.51

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1.5x scale

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.