Home / 143,975.16-198,556.20-90,265.68

Finding the Fourth Proportional to 143,975.16, 198,556.20 and 90,265.68

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Solution

The fourth proportional to 143,975.16, 198,556.20 and 90,265.68 is: 124,485.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,975.16 : 198,556.20 = 90,265.68 : x
  2. Step 2: Convert to fraction form
    143,975.16/198,556.20 = 90,265.68/x
  3. Step 3: Cross multiply
    143,975.16x = 198,556.20 × 90,265.68
  4. Step 4: Simplify right side
    143,975.16x = 17,922,810,411.22
  5. Step 5: Solve for x
    x = 17,922,810,411.22/143,975.16
  6. Step 6: Final answer
    x = 124,485.43

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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.