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Finding the Fourth Proportional to 168,072.30, 252,108.45 and 105,864.30

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Solution

The fourth proportional to 168,072.30, 252,108.45 and 105,864.30 is: 158,796.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,072.30 : 252,108.45 = 105,864.30 : x
  2. Step 2: Convert to fraction form
    168,072.30/252,108.45 = 105,864.30/x
  3. Step 3: Cross multiply
    168,072.30x = 252,108.45 × 105,864.30
  4. Step 4: Simplify right side
    168,072.30x = 26,689,284,583.34
  5. Step 5: Solve for x
    x = 26,689,284,583.34/168,072.30
  6. Step 6: Final answer
    x = 158,796.45

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1.5x scale

Why These Related Problems?

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