Home / 143,986.22-198,676.38-83,543.01

Finding the Fourth Proportional to 143,986.22, 198,676.38 and 83,543.01

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Solution

The fourth proportional to 143,986.22, 198,676.38 and 83,543.01 is: 115,275.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,986.22 : 198,676.38 = 83,543.01 : x
  2. Step 2: Convert to fraction form
    143,986.22/198,676.38 = 83,543.01/x
  3. Step 3: Cross multiply
    143,986.22x = 198,676.38 × 83,543.01
  4. Step 4: Simplify right side
    143,986.22x = 16,598,022,801.10
  5. Step 5: Solve for x
    x = 16,598,022,801.10/143,986.22
  6. Step 6: Final answer
    x = 115,275.08

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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.