Home / 106,115.06-146,355.80-65,806.04

Finding the Fourth Proportional to 106,115.06, 146,355.80 and 65,806.04

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Solution

The fourth proportional to 106,115.06, 146,355.80 and 65,806.04 is: 90,760.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,115.06 : 146,355.80 = 65,806.04 : x
  2. Step 2: Convert to fraction form
    106,115.06/146,355.80 = 65,806.04/x
  3. Step 3: Cross multiply
    106,115.06x = 146,355.80 × 65,806.04
  4. Step 4: Simplify right side
    106,115.06x = 9,631,095,300.00
  5. Step 5: Solve for x
    x = 9,631,095,300.00/106,115.06
  6. Step 6: Final answer
    x = 90,760.87

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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.