Home / 135,439.41-203,119.93-40,665.77

Finding the Fourth Proportional to 135,439.41, 203,119.93 and 40,665.77

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Solution

The fourth proportional to 135,439.41, 203,119.93 and 40,665.77 is: 60,986.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,439.41 : 203,119.93 = 40,665.77 : x
  2. Step 2: Convert to fraction form
    135,439.41/203,119.93 = 40,665.77/x
  3. Step 3: Cross multiply
    135,439.41x = 203,119.93 × 40,665.77
  4. Step 4: Simplify right side
    135,439.41x = 8,260,028,355.80
  5. Step 5: Solve for x
    x = 8,260,028,355.80/135,439.41
  6. Step 6: Final answer
    x = 60,986.89

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1.5x scale

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.