Home / 259,987.19-389,731.64-110,021.13

Finding the Fourth Proportional to 259,987.19, 389,731.64 and 110,021.13

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Solution

The fourth proportional to 259,987.19, 389,731.64 and 110,021.13 is: 164,926.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,987.19 : 389,731.64 = 110,021.13 : x
  2. Step 2: Convert to fraction form
    259,987.19/389,731.64 = 110,021.13/x
  3. Step 3: Cross multiply
    259,987.19x = 389,731.64 × 110,021.13
  4. Step 4: Simplify right side
    259,987.19x = 42,878,714,879.45
  5. Step 5: Solve for x
    x = 42,878,714,879.45/259,987.19
  6. Step 6: Final answer
    x = 164,926.26

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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.