Home / 103,905.79-143,387.11-58,583.37

Finding the Fourth Proportional to 103,905.79, 143,387.11 and 58,583.37

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Solution

The fourth proportional to 103,905.79, 143,387.11 and 58,583.37 is: 80,843.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,905.79 : 143,387.11 = 58,583.37 : x
  2. Step 2: Convert to fraction form
    103,905.79/143,387.11 = 58,583.37/x
  3. Step 3: Cross multiply
    103,905.79x = 143,387.11 × 58,583.37
  4. Step 4: Simplify right side
    103,905.79x = 8,400,099,922.74
  5. Step 5: Solve for x
    x = 8,400,099,922.74/103,905.79
  6. Step 6: Final answer
    x = 80,843.43

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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.