Home / 143,944.90-198,736.42-90,303.46

Finding the Fourth Proportional to 143,944.90, 198,736.42 and 90,303.46

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Solution

The fourth proportional to 143,944.90, 198,736.42 and 90,303.46 is: 124,676.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,944.90 : 198,736.42 = 90,303.46 : x
  2. Step 2: Convert to fraction form
    143,944.90/198,736.42 = 90,303.46/x
  3. Step 3: Cross multiply
    143,944.90x = 198,736.42 × 90,303.46
  4. Step 4: Simplify right side
    143,944.90x = 17,946,586,354.01
  5. Step 5: Solve for x
    x = 17,946,586,354.01/143,944.90
  6. Step 6: Final answer
    x = 124,676.78

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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.