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Finding the Fourth Proportional to 102,996.90, 154,370.60 and 43,708.02

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Solution

The fourth proportional to 102,996.90, 154,370.60 and 43,708.02 is: 65,509.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,996.90 : 154,370.60 = 43,708.02 : x
  2. Step 2: Convert to fraction form
    102,996.90/154,370.60 = 43,708.02/x
  3. Step 3: Cross multiply
    102,996.90x = 154,370.60 × 43,708.02
  4. Step 4: Simplify right side
    102,996.90x = 6,747,233,272.21
  5. Step 5: Solve for x
    x = 6,747,233,272.21/102,996.90
  6. Step 6: Final answer
    x = 65,509.09

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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.