Home / 143,846.82-198,505.89-90,161.64

Finding the Fourth Proportional to 143,846.82, 198,505.89 and 90,161.64

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Solution

The fourth proportional to 143,846.82, 198,505.89 and 90,161.64 is: 124,421.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,846.82 : 198,505.89 = 90,161.64 : x
  2. Step 2: Convert to fraction form
    143,846.82/198,505.89 = 90,161.64/x
  3. Step 3: Cross multiply
    143,846.82x = 198,505.89 × 90,161.64
  4. Step 4: Simplify right side
    143,846.82x = 17,897,616,592.06
  5. Step 5: Solve for x
    x = 17,897,616,592.06/143,846.82
  6. Step 6: Final answer
    x = 124,421.36

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1.5x scale

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.