Home / 143,406.31-198,103.08-114,915.24

Finding the Fourth Proportional to 143,406.31, 198,103.08 and 114,915.24

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Solution

The fourth proportional to 143,406.31, 198,103.08 and 114,915.24 is: 158,745.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,406.31 : 198,103.08 = 114,915.24 : x
  2. Step 2: Convert to fraction form
    143,406.31/198,103.08 = 114,915.24/x
  3. Step 3: Cross multiply
    143,406.31x = 198,103.08 × 114,915.24
  4. Step 4: Simplify right side
    143,406.31x = 22,765,062,008.51
  5. Step 5: Solve for x
    x = 22,765,062,008.51/143,406.31
  6. Step 6: Final answer
    x = 158,745.19

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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.