Home / 190,513.72-262,788.43-122,413.65

Finding the Fourth Proportional to 190,513.72, 262,788.43 and 122,413.65

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Solution

The fourth proportional to 190,513.72, 262,788.43 and 122,413.65 is: 168,853.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,513.72 : 262,788.43 = 122,413.65 : x
  2. Step 2: Convert to fraction form
    190,513.72/262,788.43 = 122,413.65/x
  3. Step 3: Cross multiply
    190,513.72x = 262,788.43 × 122,413.65
  4. Step 4: Simplify right side
    190,513.72x = 32,168,890,894.07
  5. Step 5: Solve for x
    x = 32,168,890,894.07/190,513.72
  6. Step 6: Final answer
    x = 168,853.41

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1.5x scale

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.