Home / 118,942.64-164,141.07-65,228.03

Finding the Fourth Proportional to 118,942.64, 164,141.07 and 65,228.03

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Solution

The fourth proportional to 118,942.64, 164,141.07 and 65,228.03 is: 90,014.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,942.64 : 164,141.07 = 65,228.03 : x
  2. Step 2: Convert to fraction form
    118,942.64/164,141.07 = 65,228.03/x
  3. Step 3: Cross multiply
    118,942.64x = 164,141.07 × 65,228.03
  4. Step 4: Simplify right side
    118,942.64x = 10,706,598,638.19
  5. Step 5: Solve for x
    x = 10,706,598,638.19/118,942.64
  6. Step 6: Final answer
    x = 90,014.81

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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.