Home / 103,806.90-143,223.88-58,469.04

Finding the Fourth Proportional to 103,806.90, 143,223.88 and 58,469.04

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Solution

The fourth proportional to 103,806.90, 143,223.88 and 58,469.04 is: 80,670.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,806.90 : 143,223.88 = 58,469.04 : x
  2. Step 2: Convert to fraction form
    103,806.90/143,223.88 = 58,469.04/x
  3. Step 3: Cross multiply
    103,806.90x = 143,223.88 × 58,469.04
  4. Step 4: Simplify right side
    103,806.90x = 8,374,162,768.68
  5. Step 5: Solve for x
    x = 8,374,162,768.68/103,806.90
  6. Step 6: Final answer
    x = 80,670.58

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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.