Home / 259,825.96-389,670.09-102,055.78

Finding the Fourth Proportional to 259,825.96, 389,670.09 and 102,055.78

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Solution

The fourth proportional to 259,825.96, 389,670.09 and 102,055.78 is: 153,056.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,825.96 : 389,670.09 = 102,055.78 : x
  2. Step 2: Convert to fraction form
    259,825.96/389,670.09 = 102,055.78/x
  3. Step 3: Cross multiply
    259,825.96x = 389,670.09 × 102,055.78
  4. Step 4: Simplify right side
    259,825.96x = 39,768,084,977.62
  5. Step 5: Solve for x
    x = 39,768,084,977.62/259,825.96
  6. Step 6: Final answer
    x = 153,056.63

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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.