Home / 109,413.28-164,120.64-39,293.20

Finding the Fourth Proportional to 109,413.28, 164,120.64 and 39,293.20

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Solution

The fourth proportional to 109,413.28, 164,120.64 and 39,293.20 is: 58,940.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,413.28 : 164,120.64 = 39,293.20 : x
  2. Step 2: Convert to fraction form
    109,413.28/164,120.64 = 39,293.20/x
  3. Step 3: Cross multiply
    109,413.28x = 164,120.64 × 39,293.20
  4. Step 4: Simplify right side
    109,413.28x = 6,448,825,131.65
  5. Step 5: Solve for x
    x = 6,448,825,131.65/109,413.28
  6. Step 6: Final answer
    x = 58,940.06

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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.