Home / 197,253.72-272,196.46-111,215.78

Finding the Fourth Proportional to 197,253.72, 272,196.46 and 111,215.78

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Solution

The fourth proportional to 197,253.72, 272,196.46 and 111,215.78 is: 153,470.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,253.72 : 272,196.46 = 111,215.78 : x
  2. Step 2: Convert to fraction form
    197,253.72/272,196.46 = 111,215.78/x
  3. Step 3: Cross multiply
    197,253.72x = 272,196.46 × 111,215.78
  4. Step 4: Simplify right side
    197,253.72x = 30,272,541,410.91
  5. Step 5: Solve for x
    x = 30,272,541,410.91/197,253.72
  6. Step 6: Final answer
    x = 153,470.07

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1.5x scale

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.