Home / 203,664.78-305,424.27-70,509.29

Finding the Fourth Proportional to 203,664.78, 305,424.27 and 70,509.29

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Solution

The fourth proportional to 203,664.78, 305,424.27 and 70,509.29 is: 105,738.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,664.78 : 305,424.27 = 70,509.29 : x
  2. Step 2: Convert to fraction form
    203,664.78/305,424.27 = 70,509.29/x
  3. Step 3: Cross multiply
    203,664.78x = 305,424.27 × 70,509.29
  4. Step 4: Simplify right side
    203,664.78x = 21,535,246,899.35
  5. Step 5: Solve for x
    x = 21,535,246,899.35/203,664.78
  6. Step 6: Final answer
    x = 105,738.69

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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.