Home / 109,027.56-163,544.42-30,141.78

Finding the Fourth Proportional to 109,027.56, 163,544.42 and 30,141.78

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Solution

The fourth proportional to 109,027.56, 163,544.42 and 30,141.78 is: 45,213.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,027.56 : 163,544.42 = 30,141.78 : x
  2. Step 2: Convert to fraction form
    109,027.56/163,544.42 = 30,141.78/x
  3. Step 3: Cross multiply
    109,027.56x = 163,544.42 × 30,141.78
  4. Step 4: Simplify right side
    109,027.56x = 4,929,519,777.16
  5. Step 5: Solve for x
    x = 4,929,519,777.16/109,027.56
  6. Step 6: Final answer
    x = 45,213.52

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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.