Home / 147,140.20-203,039.42-82,594.64

Finding the Fourth Proportional to 147,140.20, 203,039.42 and 82,594.64

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Solution

The fourth proportional to 147,140.20, 203,039.42 and 82,594.64 is: 113,972.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,140.20 : 203,039.42 = 82,594.64 : x
  2. Step 2: Convert to fraction form
    147,140.20/203,039.42 = 82,594.64/x
  3. Step 3: Cross multiply
    147,140.20x = 203,039.42 × 82,594.64
  4. Step 4: Simplify right side
    147,140.20x = 16,769,967,800.71
  5. Step 5: Solve for x
    x = 16,769,967,800.71/147,140.20
  6. Step 6: Final answer
    x = 113,972.71

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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.