Home / 208,790.07-313,181.25-66,634.20

Finding the Fourth Proportional to 208,790.07, 313,181.25 and 66,634.20

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Solution

The fourth proportional to 208,790.07, 313,181.25 and 66,634.20 is: 99,950.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,790.07 : 313,181.25 = 66,634.20 : x
  2. Step 2: Convert to fraction form
    208,790.07/313,181.25 = 66,634.20/x
  3. Step 3: Cross multiply
    208,790.07x = 313,181.25 × 66,634.20
  4. Step 4: Simplify right side
    208,790.07x = 20,868,582,048.75
  5. Step 5: Solve for x
    x = 20,868,582,048.75/208,790.07
  6. Step 6: Final answer
    x = 99,950.07

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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.