Home / 259,881.41-389,977.63-112,137.41

Finding the Fourth Proportional to 259,881.41, 389,977.63 and 112,137.41

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Solution

The fourth proportional to 259,881.41, 389,977.63 and 112,137.41 is: 168,273.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,881.41 : 389,977.63 = 112,137.41 : x
  2. Step 2: Convert to fraction form
    259,881.41/389,977.63 = 112,137.41/x
  3. Step 3: Cross multiply
    259,881.41x = 389,977.63 × 112,137.41
  4. Step 4: Simplify right side
    259,881.41x = 43,731,080,411.19
  5. Step 5: Solve for x
    x = 43,731,080,411.19/259,881.41
  6. Step 6: Final answer
    x = 168,273.22

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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.