Home / 100,256.00-149,968.53-76,383

Finding the Fourth Proportional to 100,256.00, 149,968.53 and 76,383

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Solution

The fourth proportional to 100,256.00, 149,968.53 and 76,383 is: 114,257.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,256.00 : 149,968.53 = 76,383 : x
  2. Step 2: Convert to fraction form
    100,256.00/149,968.53 = 76,383/x
  3. Step 3: Cross multiply
    100,256.00x = 149,968.53 × 76,383
  4. Step 4: Simplify right side
    100,256.00x = 11,455,046,226.99
  5. Step 5: Solve for x
    x = 11,455,046,226.99/100,256.00
  6. Step 6: Final answer
    x = 114,257.97

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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.