Home / 149,257.98-205,964.64-84,719.61

Finding the Fourth Proportional to 149,257.98, 205,964.64 and 84,719.61

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Solution

The fourth proportional to 149,257.98, 205,964.64 and 84,719.61 is: 116,906.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,257.98 : 205,964.64 = 84,719.61 : x
  2. Step 2: Convert to fraction form
    149,257.98/205,964.64 = 84,719.61/x
  3. Step 3: Cross multiply
    149,257.98x = 205,964.64 × 84,719.61
  4. Step 4: Simplify right side
    149,257.98x = 17,449,243,974.59
  5. Step 5: Solve for x
    x = 17,449,243,974.59/149,257.98
  6. Step 6: Final answer
    x = 116,906.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.