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Finding the Fourth Proportional to 188,624.60, 260,304.12 and 103,743.08

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Solution

The fourth proportional to 188,624.60, 260,304.12 and 103,743.08 is: 143,166.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,624.60 : 260,304.12 = 103,743.08 : x
  2. Step 2: Convert to fraction form
    188,624.60/260,304.12 = 103,743.08/x
  3. Step 3: Cross multiply
    188,624.60x = 260,304.12 × 103,743.08
  4. Step 4: Simplify right side
    188,624.60x = 27,004,751,145.49
  5. Step 5: Solve for x
    x = 27,004,751,145.49/188,624.60
  6. Step 6: Final answer
    x = 143,166.64

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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.