Home / 128,947.41-193,169.50-84,439.23

Finding the Fourth Proportional to 128,947.41, 193,169.50 and 84,439.23

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Solution

The fourth proportional to 128,947.41, 193,169.50 and 84,439.23 is: 126,494.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,947.41 : 193,169.50 = 84,439.23 : x
  2. Step 2: Convert to fraction form
    128,947.41/193,169.50 = 84,439.23/x
  3. Step 3: Cross multiply
    128,947.41x = 193,169.50 × 84,439.23
  4. Step 4: Simplify right side
    128,947.41x = 16,311,082,873.64
  5. Step 5: Solve for x
    x = 16,311,082,873.64/128,947.41
  6. Step 6: Final answer
    x = 126,494.07

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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.