Home / 106,171.88-159,232.31-31,271.79

Finding the Fourth Proportional to 106,171.88, 159,232.31 and 31,271.79

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Solution

The fourth proportional to 106,171.88, 159,232.31 and 31,271.79 is: 46,900.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,171.88 : 159,232.31 = 31,271.79 : x
  2. Step 2: Convert to fraction form
    106,171.88/159,232.31 = 31,271.79/x
  3. Step 3: Cross multiply
    106,171.88x = 159,232.31 × 31,271.79
  4. Step 4: Simplify right side
    106,171.88x = 4,979,479,203.18
  5. Step 5: Solve for x
    x = 4,979,479,203.18/106,171.88
  6. Step 6: Final answer
    x = 46,900.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.