Home / 107,388.58-148,270.37-67,120.43

Finding the Fourth Proportional to 107,388.58, 148,270.37 and 67,120.43

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Solution

The fourth proportional to 107,388.58, 148,270.37 and 67,120.43 is: 92,672.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,388.58 : 148,270.37 = 67,120.43 : x
  2. Step 2: Convert to fraction form
    107,388.58/148,270.37 = 67,120.43/x
  3. Step 3: Cross multiply
    107,388.58x = 148,270.37 × 67,120.43
  4. Step 4: Simplify right side
    107,388.58x = 9,951,970,990.66
  5. Step 5: Solve for x
    x = 9,951,970,990.66/107,388.58
  6. Step 6: Final answer
    x = 92,672.53

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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.