Home / 223,905.31-308,986.25-127,108.31

Finding the Fourth Proportional to 223,905.31, 308,986.25 and 127,108.31

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Solution

The fourth proportional to 223,905.31, 308,986.25 and 127,108.31 is: 175,407.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,905.31 : 308,986.25 = 127,108.31 : x
  2. Step 2: Convert to fraction form
    223,905.31/308,986.25 = 127,108.31/x
  3. Step 3: Cross multiply
    223,905.31x = 308,986.25 × 127,108.31
  4. Step 4: Simplify right side
    223,905.31x = 39,274,721,140.97
  5. Step 5: Solve for x
    x = 39,274,721,140.97/223,905.31
  6. Step 6: Final answer
    x = 175,407.73

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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.