Home / 255,723.80-383,585.16-68,735.30

Finding the Fourth Proportional to 255,723.80, 383,585.16 and 68,735.30

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Solution

The fourth proportional to 255,723.80, 383,585.16 and 68,735.30 is: 103,102.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,723.80 : 383,585.16 = 68,735.30 : x
  2. Step 2: Convert to fraction form
    255,723.80/383,585.16 = 68,735.30/x
  3. Step 3: Cross multiply
    255,723.80x = 383,585.16 × 68,735.30
  4. Step 4: Simplify right side
    255,723.80x = 26,365,841,048.15
  5. Step 5: Solve for x
    x = 26,365,841,048.15/255,723.80
  6. Step 6: Final answer
    x = 103,102.80

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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.