Home / 138,825.44-191,579.36-75,163.84

Finding the Fourth Proportional to 138,825.44, 191,579.36 and 75,163.84

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Solution

The fourth proportional to 138,825.44, 191,579.36 and 75,163.84 is: 103,726.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,825.44 : 191,579.36 = 75,163.84 : x
  2. Step 2: Convert to fraction form
    138,825.44/191,579.36 = 75,163.84/x
  3. Step 3: Cross multiply
    138,825.44x = 191,579.36 × 75,163.84
  4. Step 4: Simplify right side
    138,825.44x = 14,399,840,362.34
  5. Step 5: Solve for x
    x = 14,399,840,362.34/138,825.44
  6. Step 6: Final answer
    x = 103,726.24

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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.