Home / 103,660.48-143,049.73-58,338.41

Finding the Fourth Proportional to 103,660.48, 143,049.73 and 58,338.41

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Solution

The fourth proportional to 103,660.48, 143,049.73 and 58,338.41 is: 80,506.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,660.48 : 143,049.73 = 58,338.41 : x
  2. Step 2: Convert to fraction form
    103,660.48/143,049.73 = 58,338.41/x
  3. Step 3: Cross multiply
    103,660.48x = 143,049.73 × 58,338.41
  4. Step 4: Simplify right side
    103,660.48x = 8,345,293,799.13
  5. Step 5: Solve for x
    x = 8,345,293,799.13/103,660.48
  6. Step 6: Final answer
    x = 80,506.03

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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.