Home / 132,778.80-199,047.74-66,239.33

Finding the Fourth Proportional to 132,778.80, 199,047.74 and 66,239.33

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Solution

The fourth proportional to 132,778.80, 199,047.74 and 66,239.33 is: 99,298.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,778.80 : 199,047.74 = 66,239.33 : x
  2. Step 2: Convert to fraction form
    132,778.80/199,047.74 = 66,239.33/x
  3. Step 3: Cross multiply
    132,778.80x = 199,047.74 × 66,239.33
  4. Step 4: Simplify right side
    132,778.80x = 13,184,787,609.18
  5. Step 5: Solve for x
    x = 13,184,787,609.18/132,778.80
  6. Step 6: Final answer
    x = 99,298.89

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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.