Home / 117,749.13-162,436.69-69,968.64

Finding the Fourth Proportional to 117,749.13, 162,436.69 and 69,968.64

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Solution

The fourth proportional to 117,749.13, 162,436.69 and 69,968.64 is: 96,522.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,749.13 : 162,436.69 = 69,968.64 : x
  2. Step 2: Convert to fraction form
    117,749.13/162,436.69 = 69,968.64/x
  3. Step 3: Cross multiply
    117,749.13x = 162,436.69 × 69,968.64
  4. Step 4: Simplify right side
    117,749.13x = 11,365,474,982.00
  5. Step 5: Solve for x
    x = 11,365,474,982.00/117,749.13
  6. Step 6: Final answer
    x = 96,522.80

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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.