Home / 135,921.76-203,875.44-42,416.80

Finding the Fourth Proportional to 135,921.76, 203,875.44 and 42,416.80

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Solution

The fourth proportional to 135,921.76, 203,875.44 and 42,416.80 is: 63,622.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,921.76 : 203,875.44 = 42,416.80 : x
  2. Step 2: Convert to fraction form
    135,921.76/203,875.44 = 42,416.80/x
  3. Step 3: Cross multiply
    135,921.76x = 203,875.44 × 42,416.80
  4. Step 4: Simplify right side
    135,921.76x = 8,647,743,763.39
  5. Step 5: Solve for x
    x = 8,647,743,763.39/135,921.76
  6. Step 6: Final answer
    x = 63,622.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.