Home / 214,955.24-322,431.90-81,804.20

Finding the Fourth Proportional to 214,955.24, 322,431.90 and 81,804.20

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Solution

The fourth proportional to 214,955.24, 322,431.90 and 81,804.20 is: 122,705.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,955.24 : 322,431.90 = 81,804.20 : x
  2. Step 2: Convert to fraction form
    214,955.24/322,431.90 = 81,804.20/x
  3. Step 3: Cross multiply
    214,955.24x = 322,431.90 × 81,804.20
  4. Step 4: Simplify right side
    214,955.24x = 26,376,283,633.98
  5. Step 5: Solve for x
    x = 26,376,283,633.98/214,955.24
  6. Step 6: Final answer
    x = 122,705.93

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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.