Home / 143,594.13-198,178.47-82,364.21

Finding the Fourth Proportional to 143,594.13, 198,178.47 and 82,364.21

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Solution

The fourth proportional to 143,594.13, 198,178.47 and 82,364.21 is: 113,673.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,594.13 : 198,178.47 = 82,364.21 : x
  2. Step 2: Convert to fraction form
    143,594.13/198,178.47 = 82,364.21/x
  3. Step 3: Cross multiply
    143,594.13x = 198,178.47 × 82,364.21
  4. Step 4: Simplify right side
    143,594.13x = 16,322,813,120.56
  5. Step 5: Solve for x
    x = 16,322,813,120.56/143,594.13
  6. Step 6: Final answer
    x = 113,673.26

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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.