Home / 196,016.80-294,111.60-90,781.60

Finding the Fourth Proportional to 196,016.80, 294,111.60 and 90,781.60

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Solution

The fourth proportional to 196,016.80, 294,111.60 and 90,781.60 is: 136,212.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,016.80 : 294,111.60 = 90,781.60 : x
  2. Step 2: Convert to fraction form
    196,016.80/294,111.60 = 90,781.60/x
  3. Step 3: Cross multiply
    196,016.80x = 294,111.60 × 90,781.60
  4. Step 4: Simplify right side
    196,016.80x = 26,699,921,626.56
  5. Step 5: Solve for x
    x = 26,699,921,626.56/196,016.80
  6. Step 6: Final answer
    x = 136,212.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.