Home / 144,040.56-198,720.48-90,231.84

Finding the Fourth Proportional to 144,040.56, 198,720.48 and 90,231.84

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Solution

The fourth proportional to 144,040.56, 198,720.48 and 90,231.84 is: 124,485.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,040.56 : 198,720.48 = 90,231.84 : x
  2. Step 2: Convert to fraction form
    144,040.56/198,720.48 = 90,231.84/x
  3. Step 3: Cross multiply
    144,040.56x = 198,720.48 × 90,231.84
  4. Step 4: Simplify right side
    144,040.56x = 17,930,914,556.08
  5. Step 5: Solve for x
    x = 17,930,914,556.08/144,040.56
  6. Step 6: Final answer
    x = 124,485.18

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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.