Home / 103,788.63-143,209.26-58,456.91

Finding the Fourth Proportional to 103,788.63, 143,209.26 and 58,456.91

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Solution

The fourth proportional to 103,788.63, 143,209.26 and 58,456.91 is: 80,659.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,788.63 : 143,209.26 = 58,456.91 : x
  2. Step 2: Convert to fraction form
    103,788.63/143,209.26 = 58,456.91/x
  3. Step 3: Cross multiply
    103,788.63x = 143,209.26 × 58,456.91
  4. Step 4: Simplify right side
    103,788.63x = 8,371,571,181.01
  5. Step 5: Solve for x
    x = 8,371,571,181.01/103,788.63
  6. Step 6: Final answer
    x = 80,659.81

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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.