Home / 139,517.08-192,607.02-111,993.64

Finding the Fourth Proportional to 139,517.08, 192,607.02 and 111,993.64

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Solution

The fourth proportional to 139,517.08, 192,607.02 and 111,993.64 is: 154,610.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,517.08 : 192,607.02 = 111,993.64 : x
  2. Step 2: Convert to fraction form
    139,517.08/192,607.02 = 111,993.64/x
  3. Step 3: Cross multiply
    139,517.08x = 192,607.02 × 111,993.64
  4. Step 4: Simplify right side
    139,517.08x = 21,570,761,259.35
  5. Step 5: Solve for x
    x = 21,570,761,259.35/139,517.08
  6. Step 6: Final answer
    x = 154,610.18

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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.