Home / 159,243.73-219,731.25-91,247.63

Finding the Fourth Proportional to 159,243.73, 219,731.25 and 91,247.63

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Solution

The fourth proportional to 159,243.73, 219,731.25 and 91,247.63 is: 125,907.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,243.73 : 219,731.25 = 91,247.63 : x
  2. Step 2: Convert to fraction form
    159,243.73/219,731.25 = 91,247.63/x
  3. Step 3: Cross multiply
    159,243.73x = 219,731.25 × 91,247.63
  4. Step 4: Simplify right side
    159,243.73x = 20,049,955,799.44
  5. Step 5: Solve for x
    x = 20,049,955,799.44/159,243.73
  6. Step 6: Final answer
    x = 125,907.35

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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.