Home / 139,541.27-192,575.36-82,218.79

Finding the Fourth Proportional to 139,541.27, 192,575.36 and 82,218.79

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Solution

The fourth proportional to 139,541.27, 192,575.36 and 82,218.79 is: 113,466.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,541.27 : 192,575.36 = 82,218.79 : x
  2. Step 2: Convert to fraction form
    139,541.27/192,575.36 = 82,218.79/x
  3. Step 3: Cross multiply
    139,541.27x = 192,575.36 × 82,218.79
  4. Step 4: Simplify right side
    139,541.27x = 15,833,313,693.33
  5. Step 5: Solve for x
    x = 15,833,313,693.33/139,541.27
  6. Step 6: Final answer
    x = 113,466.89

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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.