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Finding the Fourth Proportional to 188,433.70, 260,025.01 and 107,860.05

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Solution

The fourth proportional to 188,433.70, 260,025.01 and 107,860.05 is: 148,839.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,433.70 : 260,025.01 = 107,860.05 : x
  2. Step 2: Convert to fraction form
    188,433.70/260,025.01 = 107,860.05/x
  3. Step 3: Cross multiply
    188,433.70x = 260,025.01 × 107,860.05
  4. Step 4: Simplify right side
    188,433.70x = 28,046,310,310.20
  5. Step 5: Solve for x
    x = 28,046,310,310.20/188,433.70
  6. Step 6: Final answer
    x = 148,839.14

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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.