Home / 142,721.90-196,556.73-139,622.44

Finding the Fourth Proportional to 142,721.90, 196,556.73 and 139,622.44

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Solution

The fourth proportional to 142,721.90, 196,556.73 and 139,622.44 is: 192,288.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,721.90 : 196,556.73 = 139,622.44 : x
  2. Step 2: Convert to fraction form
    142,721.90/196,556.73 = 139,622.44/x
  3. Step 3: Cross multiply
    142,721.90x = 196,556.73 × 139,622.44
  4. Step 4: Simplify right side
    142,721.90x = 27,443,730,241.02
  5. Step 5: Solve for x
    x = 27,443,730,241.02/142,721.90
  6. Step 6: Final answer
    x = 192,288.15

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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.