Home / 134,890.46-186,034.52-81,165.44

Finding the Fourth Proportional to 134,890.46, 186,034.52 and 81,165.44

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Solution

The fourth proportional to 134,890.46, 186,034.52 and 81,165.44 is: 111,939.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,890.46 : 186,034.52 = 81,165.44 : x
  2. Step 2: Convert to fraction form
    134,890.46/186,034.52 = 81,165.44/x
  3. Step 3: Cross multiply
    134,890.46x = 186,034.52 × 81,165.44
  4. Step 4: Simplify right side
    134,890.46x = 15,099,574,338.99
  5. Step 5: Solve for x
    x = 15,099,574,338.99/134,890.46
  6. Step 6: Final answer
    x = 111,939.52

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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.