Home / 117,446.76-162,074.28-66,458.56

Finding the Fourth Proportional to 117,446.76, 162,074.28 and 66,458.56

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Solution

The fourth proportional to 117,446.76, 162,074.28 and 66,458.56 is: 91,711.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,446.76 : 162,074.28 = 66,458.56 : x
  2. Step 2: Convert to fraction form
    117,446.76/162,074.28 = 66,458.56/x
  3. Step 3: Cross multiply
    117,446.76x = 162,074.28 × 66,458.56
  4. Step 4: Simplify right side
    117,446.76x = 10,771,222,856.65
  5. Step 5: Solve for x
    x = 10,771,222,856.65/117,446.76
  6. Step 6: Final answer
    x = 91,711.54

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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.