Home / 117,961.05-162,772.16-66,955.35

Finding the Fourth Proportional to 117,961.05, 162,772.16 and 66,955.35

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Solution

The fourth proportional to 117,961.05, 162,772.16 and 66,955.35 is: 92,390.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,961.05 : 162,772.16 = 66,955.35 : x
  2. Step 2: Convert to fraction form
    117,961.05/162,772.16 = 66,955.35/x
  3. Step 3: Cross multiply
    117,961.05x = 162,772.16 × 66,955.35
  4. Step 4: Simplify right side
    117,961.05x = 10,898,466,608.28
  5. Step 5: Solve for x
    x = 10,898,466,608.28/117,961.05
  6. Step 6: Final answer
    x = 92,390.38

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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.