Home / 208,763.08-313,146.54-66,629.95

Finding the Fourth Proportional to 208,763.08, 313,146.54 and 66,629.95

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Solution

The fourth proportional to 208,763.08, 313,146.54 and 66,629.95 is: 99,945.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,763.08 : 313,146.54 = 66,629.95 : x
  2. Step 2: Convert to fraction form
    208,763.08/313,146.54 = 66,629.95/x
  3. Step 3: Cross multiply
    208,763.08x = 313,146.54 × 66,629.95
  4. Step 4: Simplify right side
    208,763.08x = 20,864,937,520.01
  5. Step 5: Solve for x
    x = 20,864,937,520.01/208,763.08
  6. Step 6: Final answer
    x = 99,945.54

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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.