Home / 197,485.48-272,512.98-111,439.72

Finding the Fourth Proportional to 197,485.48, 272,512.98 and 111,439.72

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Solution

The fourth proportional to 197,485.48, 272,512.98 and 111,439.72 is: 153,777.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,485.48 : 272,512.98 = 111,439.72 : x
  2. Step 2: Convert to fraction form
    197,485.48/272,512.98 = 111,439.72/x
  3. Step 3: Cross multiply
    197,485.48x = 272,512.98 × 111,439.72
  4. Step 4: Simplify right side
    197,485.48x = 30,368,770,187.57
  5. Step 5: Solve for x
    x = 30,368,770,187.57/197,485.48
  6. Step 6: Final answer
    x = 153,777.23

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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.