Home / 102,872.30-154,374.04-43,707.96

Finding the Fourth Proportional to 102,872.30, 154,374.04 and 43,707.96

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Solution

The fourth proportional to 102,872.30, 154,374.04 and 43,707.96 is: 65,589.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,872.30 : 154,374.04 = 43,707.96 : x
  2. Step 2: Convert to fraction form
    102,872.30/154,374.04 = 43,707.96/x
  3. Step 3: Cross multiply
    102,872.30x = 154,374.04 × 43,707.96
  4. Step 4: Simplify right side
    102,872.30x = 6,747,374,365.36
  5. Step 5: Solve for x
    x = 6,747,374,365.36/102,872.30
  6. Step 6: Final answer
    x = 65,589.81

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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.