Home / 139,523.04-192,615.36-111,999.60

Finding the Fourth Proportional to 139,523.04, 192,615.36 and 111,999.60

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Solution

The fourth proportional to 139,523.04, 192,615.36 and 111,999.60 is: 154,618.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,523.04 : 192,615.36 = 111,999.60 : x
  2. Step 2: Convert to fraction form
    139,523.04/192,615.36 = 111,999.60/x
  3. Step 3: Cross multiply
    139,523.04x = 192,615.36 × 111,999.60
  4. Step 4: Simplify right side
    139,523.04x = 21,572,843,273.86
  5. Step 5: Solve for x
    x = 21,572,843,273.86/139,523.04
  6. Step 6: Final answer
    x = 154,618.50

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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.