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Finding the Fourth Proportional to 188,987.54, 260,802.81 and 104,104.62

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Solution

The fourth proportional to 188,987.54, 260,802.81 and 104,104.62 is: 143,664.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,987.54 : 260,802.81 = 104,104.62 : x
  2. Step 2: Convert to fraction form
    188,987.54/260,802.81 = 104,104.62/x
  3. Step 3: Cross multiply
    188,987.54x = 260,802.81 × 104,104.62
  4. Step 4: Simplify right side
    188,987.54x = 27,150,777,429.98
  5. Step 5: Solve for x
    x = 27,150,777,429.98/188,987.54
  6. Step 6: Final answer
    x = 143,664.38

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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.