Home / 143,682.21-198,287.60-80,020.01

Finding the Fourth Proportional to 143,682.21, 198,287.60 and 80,020.01

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Solution

The fourth proportional to 143,682.21, 198,287.60 and 80,020.01 is: 110,431.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,682.21 : 198,287.60 = 80,020.01 : x
  2. Step 2: Convert to fraction form
    143,682.21/198,287.60 = 80,020.01/x
  3. Step 3: Cross multiply
    143,682.21x = 198,287.60 × 80,020.01
  4. Step 4: Simplify right side
    143,682.21x = 15,866,974,343.34
  5. Step 5: Solve for x
    x = 15,866,974,343.34/143,682.21
  6. Step 6: Final answer
    x = 110,431.03

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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.