Home / 120,413.64-166,039.38-82,177.32

Finding the Fourth Proportional to 120,413.64, 166,039.38 and 82,177.32

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Solution

The fourth proportional to 120,413.64, 166,039.38 and 82,177.32 is: 113,315.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,413.64 : 166,039.38 = 82,177.32 : x
  2. Step 2: Convert to fraction form
    120,413.64/166,039.38 = 82,177.32/x
  3. Step 3: Cross multiply
    120,413.64x = 166,039.38 × 82,177.32
  4. Step 4: Simplify right side
    120,413.64x = 13,644,671,262.86
  5. Step 5: Solve for x
    x = 13,644,671,262.86/120,413.64
  6. Step 6: Final answer
    x = 113,315.00

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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.