Home / 113,839.27-157,237.68-85,286.62

Finding the Fourth Proportional to 113,839.27, 157,237.68 and 85,286.62

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Solution

The fourth proportional to 113,839.27, 157,237.68 and 85,286.62 is: 117,800.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,839.27 : 157,237.68 = 85,286.62 : x
  2. Step 2: Convert to fraction form
    113,839.27/157,237.68 = 85,286.62/x
  3. Step 3: Cross multiply
    113,839.27x = 157,237.68 × 85,286.62
  4. Step 4: Simplify right side
    113,839.27x = 13,410,269,477.65
  5. Step 5: Solve for x
    x = 13,410,269,477.65/113,839.27
  6. Step 6: Final answer
    x = 117,800.04

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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.