Home / 143,842.43-198,421.26-90,034.03

Finding the Fourth Proportional to 143,842.43, 198,421.26 and 90,034.03

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Solution

The fourth proportional to 143,842.43, 198,421.26 and 90,034.03 is: 124,196.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,842.43 : 198,421.26 = 90,034.03 : x
  2. Step 2: Convert to fraction form
    143,842.43/198,421.26 = 90,034.03/x
  3. Step 3: Cross multiply
    143,842.43x = 198,421.26 × 90,034.03
  4. Step 4: Simplify right side
    143,842.43x = 17,864,665,675.48
  5. Step 5: Solve for x
    x = 17,864,665,675.48/143,842.43
  6. Step 6: Final answer
    x = 124,196.08

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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.