Home / 164,530.70-247,087.65-127,181.60

Finding the Fourth Proportional to 164,530.70, 247,087.65 and 127,181.60

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Solution

The fourth proportional to 164,530.70, 247,087.65 and 127,181.60 is: 190,997.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,530.70 : 247,087.65 = 127,181.60 : x
  2. Step 2: Convert to fraction form
    164,530.70/247,087.65 = 127,181.60/x
  3. Step 3: Cross multiply
    164,530.70x = 247,087.65 × 127,181.60
  4. Step 4: Simplify right side
    164,530.70x = 31,425,002,667.24
  5. Step 5: Solve for x
    x = 31,425,002,667.24/164,530.70
  6. Step 6: Final answer
    x = 190,997.81

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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.