Home / 106,245.31-159,330.81-31,345.57

Finding the Fourth Proportional to 106,245.31, 159,330.81 and 31,345.57

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Solution

The fourth proportional to 106,245.31, 159,330.81 and 31,345.57 is: 47,007.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,245.31 : 159,330.81 = 31,345.57 : x
  2. Step 2: Convert to fraction form
    106,245.31/159,330.81 = 31,345.57/x
  3. Step 3: Cross multiply
    106,245.31x = 159,330.81 × 31,345.57
  4. Step 4: Simplify right side
    106,245.31x = 4,994,315,058.01
  5. Step 5: Solve for x
    x = 4,994,315,058.01/106,245.31
  6. Step 6: Final answer
    x = 47,007.39

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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.