Home / 143,589.08-198,171.51-82,359.16

Finding the Fourth Proportional to 143,589.08, 198,171.51 and 82,359.16

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Solution

The fourth proportional to 143,589.08, 198,171.51 and 82,359.16 is: 113,666.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,589.08 : 198,171.51 = 82,359.16 : x
  2. Step 2: Convert to fraction form
    143,589.08/198,171.51 = 82,359.16/x
  3. Step 3: Cross multiply
    143,589.08x = 198,171.51 × 82,359.16
  4. Step 4: Simplify right side
    143,589.08x = 16,321,238,295.26
  5. Step 5: Solve for x
    x = 16,321,238,295.26/143,589.08
  6. Step 6: Final answer
    x = 113,666.29

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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.