Home / 136,553.73-188,449.92-76,124.31

Finding the Fourth Proportional to 136,553.73, 188,449.92 and 76,124.31

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Solution

The fourth proportional to 136,553.73, 188,449.92 and 76,124.31 is: 105,054.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,553.73 : 188,449.92 = 76,124.31 : x
  2. Step 2: Convert to fraction form
    136,553.73/188,449.92 = 76,124.31/x
  3. Step 3: Cross multiply
    136,553.73x = 188,449.92 × 76,124.31
  4. Step 4: Simplify right side
    136,553.73x = 14,345,620,129.56
  5. Step 5: Solve for x
    x = 14,345,620,129.56/136,553.73
  6. Step 6: Final answer
    x = 105,054.77

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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.