Home / 259,024.86-388,589.13-81,559.26

Finding the Fourth Proportional to 259,024.86, 388,589.13 and 81,559.26

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Solution

The fourth proportional to 259,024.86, 388,589.13 and 81,559.26 is: 122,355.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,024.86 : 388,589.13 = 81,559.26 : x
  2. Step 2: Convert to fraction form
    259,024.86/388,589.13 = 81,559.26/x
  3. Step 3: Cross multiply
    259,024.86x = 388,589.13 × 81,559.26
  4. Step 4: Simplify right side
    259,024.86x = 31,693,041,886.84
  5. Step 5: Solve for x
    x = 31,693,041,886.84/259,024.86
  6. Step 6: Final answer
    x = 122,355.21

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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.