Home / 106,121.88-146,309.40-77,024.12

Finding the Fourth Proportional to 106,121.88, 146,309.40 and 77,024.12

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Solution

The fourth proportional to 106,121.88, 146,309.40 and 77,024.12 is: 106,192.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,121.88 : 146,309.40 = 77,024.12 : x
  2. Step 2: Convert to fraction form
    106,121.88/146,309.40 = 77,024.12/x
  3. Step 3: Cross multiply
    106,121.88x = 146,309.40 × 77,024.12
  4. Step 4: Simplify right side
    106,121.88x = 11,269,352,051.18
  5. Step 5: Solve for x
    x = 11,269,352,051.18/106,121.88
  6. Step 6: Final answer
    x = 106,192.54

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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.