Home / 122,712.04-169,243.86-82,413.64

Finding the Fourth Proportional to 122,712.04, 169,243.86 and 82,413.64

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Solution

The fourth proportional to 122,712.04, 169,243.86 and 82,413.64 is: 113,664.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,712.04 : 169,243.86 = 82,413.64 : x
  2. Step 2: Convert to fraction form
    122,712.04/169,243.86 = 82,413.64/x
  3. Step 3: Cross multiply
    122,712.04x = 169,243.86 × 82,413.64
  4. Step 4: Simplify right side
    122,712.04x = 13,948,002,550.25
  5. Step 5: Solve for x
    x = 13,948,002,550.25/122,712.04
  6. Step 6: Final answer
    x = 113,664.50

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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.