Home / 260,080.34-390,233.19-91,720.97

Finding the Fourth Proportional to 260,080.34, 390,233.19 and 91,720.97

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Solution

The fourth proportional to 260,080.34, 390,233.19 and 91,720.97 is: 137,621.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,080.34 : 390,233.19 = 91,720.97 : x
  2. Step 2: Convert to fraction form
    260,080.34/390,233.19 = 91,720.97/x
  3. Step 3: Cross multiply
    260,080.34x = 390,233.19 × 91,720.97
  4. Step 4: Simplify right side
    260,080.34x = 35,792,566,712.99
  5. Step 5: Solve for x
    x = 35,792,566,712.99/260,080.34
  6. Step 6: Final answer
    x = 137,621.19

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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.