Home / 208,983.16-313,433.92-66,790.29

Finding the Fourth Proportional to 208,983.16, 313,433.92 and 66,790.29

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Solution

The fourth proportional to 208,983.16, 313,433.92 and 66,790.29 is: 100,172.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,983.16 : 313,433.92 = 66,790.29 : x
  2. Step 2: Convert to fraction form
    208,983.16/313,433.92 = 66,790.29/x
  3. Step 3: Cross multiply
    208,983.16x = 313,433.92 × 66,790.29
  4. Step 4: Simplify right side
    208,983.16x = 20,934,342,412.64
  5. Step 5: Solve for x
    x = 20,934,342,412.64/208,983.16
  6. Step 6: Final answer
    x = 100,172.39

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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.