Home / 239,559.20-359,371.68-81,745.28

Finding the Fourth Proportional to 239,559.20, 359,371.68 and 81,745.28

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Solution

The fourth proportional to 239,559.20, 359,371.68 and 81,745.28 is: 122,629.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,559.20 : 359,371.68 = 81,745.28 : x
  2. Step 2: Convert to fraction form
    239,559.20/359,371.68 = 81,745.28/x
  3. Step 3: Cross multiply
    239,559.20x = 359,371.68 × 81,745.28
  4. Step 4: Simplify right side
    239,559.20x = 29,376,938,605.67
  5. Step 5: Solve for x
    x = 29,376,938,605.67/239,559.20
  6. Step 6: Final answer
    x = 122,629.14

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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.