Home / 281,081.16-421,651.26-91,556.29

Finding the Fourth Proportional to 281,081.16, 421,651.26 and 91,556.29

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Solution

The fourth proportional to 281,081.16, 421,651.26 and 91,556.29 is: 137,344.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,081.16 : 421,651.26 = 91,556.29 : x
  2. Step 2: Convert to fraction form
    281,081.16/421,651.26 = 91,556.29/x
  3. Step 3: Cross multiply
    281,081.16x = 421,651.26 × 91,556.29
  4. Step 4: Simplify right side
    281,081.16x = 38,604,825,039.43
  5. Step 5: Solve for x
    x = 38,604,825,039.43/281,081.16
  6. Step 6: Final answer
    x = 137,344.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.