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Finding the Fourth Proportional to 144,619.82, 217,069.66 and 69,792.64

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Solution

The fourth proportional to 144,619.82, 217,069.66 and 69,792.64 is: 104,756.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,619.82 : 217,069.66 = 69,792.64 : x
  2. Step 2: Convert to fraction form
    144,619.82/217,069.66 = 69,792.64/x
  3. Step 3: Cross multiply
    144,619.82x = 217,069.66 × 69,792.64
  4. Step 4: Simplify right side
    144,619.82x = 15,149,864,081.72
  5. Step 5: Solve for x
    x = 15,149,864,081.72/144,619.82
  6. Step 6: Final answer
    x = 104,756.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.