Home / 223,936.31-309,032.37-121,961.94

Finding the Fourth Proportional to 223,936.31, 309,032.37 and 121,961.94

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Solution

The fourth proportional to 223,936.31, 309,032.37 and 121,961.94 is: 168,307.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,936.31 : 309,032.37 = 121,961.94 : x
  2. Step 2: Convert to fraction form
    223,936.31/309,032.37 = 121,961.94/x
  3. Step 3: Cross multiply
    223,936.31x = 309,032.37 × 121,961.94
  4. Step 4: Simplify right side
    223,936.31x = 37,690,187,368.00
  5. Step 5: Solve for x
    x = 37,690,187,368.00/223,936.31
  6. Step 6: Final answer
    x = 168,307.62

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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.