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Finding the Fourth Proportional to 117,858.69, 162,653.67 and 66,880.17

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Solution

The fourth proportional to 117,858.69, 162,653.67 and 66,880.17 is: 92,299.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,858.69 : 162,653.67 = 66,880.17 : x
  2. Step 2: Convert to fraction form
    117,858.69/162,653.67 = 66,880.17/x
  3. Step 3: Cross multiply
    117,858.69x = 162,653.67 × 66,880.17
  4. Step 4: Simplify right side
    117,858.69x = 10,878,305,100.72
  5. Step 5: Solve for x
    x = 10,878,305,100.72/117,858.69
  6. Step 6: Final answer
    x = 92,299.56

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1.5x scale

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.