Home / 143,009.23-197,381.46-82,589.71

Finding the Fourth Proportional to 143,009.23, 197,381.46 and 82,589.71

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Solution

The fourth proportional to 143,009.23, 197,381.46 and 82,589.71 is: 113,990.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,009.23 : 197,381.46 = 82,589.71 : x
  2. Step 2: Convert to fraction form
    143,009.23/197,381.46 = 82,589.71/x
  3. Step 3: Cross multiply
    143,009.23x = 197,381.46 × 82,589.71
  4. Step 4: Simplify right side
    143,009.23x = 16,301,677,540.78
  5. Step 5: Solve for x
    x = 16,301,677,540.78/143,009.23
  6. Step 6: Final answer
    x = 113,990.39

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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.