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Finding the Fourth Proportional to 104,112.66, 143,616.84 and 65,860.44

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Solution

The fourth proportional to 104,112.66, 143,616.84 and 65,860.44 is: 90,850.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,112.66 : 143,616.84 = 65,860.44 : x
  2. Step 2: Convert to fraction form
    104,112.66/143,616.84 = 65,860.44/x
  3. Step 3: Cross multiply
    104,112.66x = 143,616.84 × 65,860.44
  4. Step 4: Simplify right side
    104,112.66x = 9,458,668,273.81
  5. Step 5: Solve for x
    x = 9,458,668,273.81/104,112.66
  6. Step 6: Final answer
    x = 90,850.32

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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.