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Finding the Fourth Proportional to 115,426.20, 172,880.10 and 115,426.20

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Solution

The fourth proportional to 115,426.20, 172,880.10 and 115,426.20 is: 172,880.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,426.20 : 172,880.10 = 115,426.20 : x
  2. Step 2: Convert to fraction form
    115,426.20/172,880.10 = 115,426.20/x
  3. Step 3: Cross multiply
    115,426.20x = 172,880.10 × 115,426.20
  4. Step 4: Simplify right side
    115,426.20x = 19,954,892,998.62
  5. Step 5: Solve for x
    x = 19,954,892,998.62/115,426.20
  6. Step 6: Final answer
    x = 172,880.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.