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Finding the Fourth Proportional to 118,794.30, 163,936.12 and 71,047.65

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Solution

The fourth proportional to 118,794.30, 163,936.12 and 71,047.65 is: 98,045.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,794.30 : 163,936.12 = 71,047.65 : x
  2. Step 2: Convert to fraction form
    118,794.30/163,936.12 = 71,047.65/x
  3. Step 3: Cross multiply
    118,794.30x = 163,936.12 × 71,047.65
  4. Step 4: Simplify right side
    118,794.30x = 11,647,276,076.12
  5. Step 5: Solve for x
    x = 11,647,276,076.12/118,794.30
  6. Step 6: Final answer
    x = 98,045.75

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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.