Home / 103,805.15-143,221.47-58,467.29

Finding the Fourth Proportional to 103,805.15, 143,221.47 and 58,467.29

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Solution

The fourth proportional to 103,805.15, 143,221.47 and 58,467.29 is: 80,668.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,805.15 : 143,221.47 = 58,467.29 : x
  2. Step 2: Convert to fraction form
    103,805.15/143,221.47 = 58,467.29/x
  3. Step 3: Cross multiply
    103,805.15x = 143,221.47 × 58,467.29
  4. Step 4: Simplify right side
    103,805.15x = 8,373,770,285.36
  5. Step 5: Solve for x
    x = 8,373,770,285.36/103,805.15
  6. Step 6: Final answer
    x = 80,668.16

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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.