Home / 275,859.02-413,736.62-86,290.99

Finding the Fourth Proportional to 275,859.02, 413,736.62 and 86,290.99

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Solution

The fourth proportional to 275,859.02, 413,736.62 and 86,290.99 is: 129,420.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,859.02 : 413,736.62 = 86,290.99 : x
  2. Step 2: Convert to fraction form
    275,859.02/413,736.62 = 86,290.99/x
  3. Step 3: Cross multiply
    275,859.02x = 413,736.62 × 86,290.99
  4. Step 4: Simplify right side
    275,859.02x = 35,701,741,073.26
  5. Step 5: Solve for x
    x = 35,701,741,073.26/275,859.02
  6. Step 6: Final answer
    x = 129,420.24

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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.