Home / 259,341.42-389,012.19-81,862.26

Finding the Fourth Proportional to 259,341.42, 389,012.19 and 81,862.26

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Solution

The fourth proportional to 259,341.42, 389,012.19 and 81,862.26 is: 122,793.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,341.42 : 389,012.19 = 81,862.26 : x
  2. Step 2: Convert to fraction form
    259,341.42/389,012.19 = 81,862.26/x
  3. Step 3: Cross multiply
    259,341.42x = 389,012.19 × 81,862.26
  4. Step 4: Simplify right side
    259,341.42x = 31,845,417,040.95
  5. Step 5: Solve for x
    x = 31,845,417,040.95/259,341.42
  6. Step 6: Final answer
    x = 122,793.41

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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.