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Finding the Fourth Proportional to 168,012.16, 252,018.24 and 115,261.76

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Solution

The fourth proportional to 168,012.16, 252,018.24 and 115,261.76 is: 172,892.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,012.16 : 252,018.24 = 115,261.76 : x
  2. Step 2: Convert to fraction form
    168,012.16/252,018.24 = 115,261.76/x
  3. Step 3: Cross multiply
    168,012.16x = 252,018.24 × 115,261.76
  4. Step 4: Simplify right side
    168,012.16x = 29,048,065,894.50
  5. Step 5: Solve for x
    x = 29,048,065,894.50/168,012.16
  6. Step 6: Final answer
    x = 172,892.64

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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.