Home / 190,431.73-285,650.03-72,071.29

Finding the Fourth Proportional to 190,431.73, 285,650.03 and 72,071.29

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Solution

The fourth proportional to 190,431.73, 285,650.03 and 72,071.29 is: 108,107.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,431.73 : 285,650.03 = 72,071.29 : x
  2. Step 2: Convert to fraction form
    190,431.73/285,650.03 = 72,071.29/x
  3. Step 3: Cross multiply
    190,431.73x = 285,650.03 × 72,071.29
  4. Step 4: Simplify right side
    190,431.73x = 20,587,166,150.64
  5. Step 5: Solve for x
    x = 20,587,166,150.64/190,431.73
  6. Step 6: Final answer
    x = 108,107.86

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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.