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Finding the Fourth Proportional to 188,540.34, 260,187.42 and 103,658

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Solution

The fourth proportional to 188,540.34, 260,187.42 and 103,658 is: 143,049.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,540.34 : 260,187.42 = 103,658 : x
  2. Step 2: Convert to fraction form
    188,540.34/260,187.42 = 103,658/x
  3. Step 3: Cross multiply
    188,540.34x = 260,187.42 × 103,658
  4. Step 4: Simplify right side
    188,540.34x = 26,970,507,582.36
  5. Step 5: Solve for x
    x = 26,970,507,582.36/188,540.34
  6. Step 6: Final answer
    x = 143,049.00

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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.