Home / 105,824.40-146,033.10-58,078.56

Finding the Fourth Proportional to 105,824.40, 146,033.10 and 58,078.56

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Solution

The fourth proportional to 105,824.40, 146,033.10 and 58,078.56 is: 80,145.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,824.40 : 146,033.10 = 58,078.56 : x
  2. Step 2: Convert to fraction form
    105,824.40/146,033.10 = 58,078.56/x
  3. Step 3: Cross multiply
    105,824.40x = 146,033.10 × 58,078.56
  4. Step 4: Simplify right side
    105,824.40x = 8,481,392,160.34
  5. Step 5: Solve for x
    x = 8,481,392,160.34/105,824.40
  6. Step 6: Final answer
    x = 80,145.90

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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.