Home / 143,833.31-198,466.26-83,379.19

Finding the Fourth Proportional to 143,833.31, 198,466.26 and 83,379.19

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Solution

The fourth proportional to 143,833.31, 198,466.26 and 83,379.19 is: 115,049.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,833.31 : 198,466.26 = 83,379.19 : x
  2. Step 2: Convert to fraction form
    143,833.31/198,466.26 = 83,379.19/x
  3. Step 3: Cross multiply
    143,833.31x = 198,466.26 × 83,379.19
  4. Step 4: Simplify right side
    143,833.31x = 16,547,956,001.13
  5. Step 5: Solve for x
    x = 16,547,956,001.13/143,833.31
  6. Step 6: Final answer
    x = 115,049.54

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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.