Home / 103,104.90-142,286.22-62,820.36

Finding the Fourth Proportional to 103,104.90, 142,286.22 and 62,820.36

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Solution

The fourth proportional to 103,104.90, 142,286.22 and 62,820.36 is: 86,692.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,104.90 : 142,286.22 = 62,820.36 : x
  2. Step 2: Convert to fraction form
    103,104.90/142,286.22 = 62,820.36/x
  3. Step 3: Cross multiply
    103,104.90x = 142,286.22 × 62,820.36
  4. Step 4: Simplify right side
    103,104.90x = 8,938,471,563.44
  5. Step 5: Solve for x
    x = 8,938,471,563.44/103,104.90
  6. Step 6: Final answer
    x = 86,692.99

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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.