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Finding the Fourth Proportional to 188,558.60, 260,210.82 and 103,681.16

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Solution

The fourth proportional to 188,558.60, 260,210.82 and 103,681.16 is: 143,079.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,558.60 : 260,210.82 = 103,681.16 : x
  2. Step 2: Convert to fraction form
    188,558.60/260,210.82 = 103,681.16/x
  3. Step 3: Cross multiply
    188,558.60x = 260,210.82 × 103,681.16
  4. Step 4: Simplify right side
    188,558.60x = 26,978,959,662.15
  5. Step 5: Solve for x
    x = 26,978,959,662.15/188,558.60
  6. Step 6: Final answer
    x = 143,079.97

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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.