Home / 103,131.24-142,270.48-67,304.68

Finding the Fourth Proportional to 103,131.24, 142,270.48 and 67,304.68

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Solution

The fourth proportional to 103,131.24, 142,270.48 and 67,304.68 is: 92,847.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,131.24 : 142,270.48 = 67,304.68 : x
  2. Step 2: Convert to fraction form
    103,131.24/142,270.48 = 67,304.68/x
  3. Step 3: Cross multiply
    103,131.24x = 142,270.48 × 67,304.68
  4. Step 4: Simplify right side
    103,131.24x = 9,575,469,129.85
  5. Step 5: Solve for x
    x = 9,575,469,129.85/103,131.24
  6. Step 6: Final answer
    x = 92,847.42

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1.5x scale

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.