Home / 209,982.44-315,018.31-67,835.87

Finding the Fourth Proportional to 209,982.44, 315,018.31 and 67,835.87

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Solution

The fourth proportional to 209,982.44, 315,018.31 and 67,835.87 is: 101,768.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,982.44 : 315,018.31 = 67,835.87 : x
  2. Step 2: Convert to fraction form
    209,982.44/315,018.31 = 67,835.87/x
  3. Step 3: Cross multiply
    209,982.44x = 315,018.31 × 67,835.87
  4. Step 4: Simplify right side
    209,982.44x = 21,369,539,210.51
  5. Step 5: Solve for x
    x = 21,369,539,210.51/209,982.44
  6. Step 6: Final answer
    x = 101,768.22

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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.