Home / 205,723.54-308,610-72,576.34

Finding the Fourth Proportional to 205,723.54, 308,610 and 72,576.34

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Solution

The fourth proportional to 205,723.54, 308,610 and 72,576.34 is: 108,873.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,723.54 : 308,610 = 72,576.34 : x
  2. Step 2: Convert to fraction form
    205,723.54/308,610 = 72,576.34/x
  3. Step 3: Cross multiply
    205,723.54x = 308,610 × 72,576.34
  4. Step 4: Simplify right side
    205,723.54x = 22,397,784,287.40
  5. Step 5: Solve for x
    x = 22,397,784,287.40/205,723.54
  6. Step 6: Final answer
    x = 108,873.22

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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.