Home / 103,469.12-142,651.20-67,596.80

Finding the Fourth Proportional to 103,469.12, 142,651.20 and 67,596.80

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Solution

The fourth proportional to 103,469.12, 142,651.20 and 67,596.80 is: 93,194.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,469.12 : 142,651.20 = 67,596.80 : x
  2. Step 2: Convert to fraction form
    103,469.12/142,651.20 = 67,596.80/x
  3. Step 3: Cross multiply
    103,469.12x = 142,651.20 × 67,596.80
  4. Step 4: Simplify right side
    103,469.12x = 9,642,764,636.16
  5. Step 5: Solve for x
    x = 9,642,764,636.16/103,469.12
  6. Step 6: Final answer
    x = 93,194.61

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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.