Home / 104,782.78-144,578.35-68,537.34

Finding the Fourth Proportional to 104,782.78, 144,578.35 and 68,537.34

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Solution

The fourth proportional to 104,782.78, 144,578.35 and 68,537.34 is: 94,567.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,782.78 : 144,578.35 = 68,537.34 : x
  2. Step 2: Convert to fraction form
    104,782.78/144,578.35 = 68,537.34/x
  3. Step 3: Cross multiply
    104,782.78x = 144,578.35 × 68,537.34
  4. Step 4: Simplify right side
    104,782.78x = 9,909,015,616.26
  5. Step 5: Solve for x
    x = 9,909,015,616.26/104,782.78
  6. Step 6: Final answer
    x = 94,567.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.