Home / 143,841.43-198,419.88-90,033.03

Finding the Fourth Proportional to 143,841.43, 198,419.88 and 90,033.03

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Solution

The fourth proportional to 143,841.43, 198,419.88 and 90,033.03 is: 124,194.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,841.43 : 198,419.88 = 90,033.03 : x
  2. Step 2: Convert to fraction form
    143,841.43/198,419.88 = 90,033.03/x
  3. Step 3: Cross multiply
    143,841.43x = 198,419.88 × 90,033.03
  4. Step 4: Simplify right side
    143,841.43x = 17,864,343,008.64
  5. Step 5: Solve for x
    x = 17,864,343,008.64/143,841.43
  6. Step 6: Final answer
    x = 124,194.70

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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.