Home / 106,212.78-159,303.79-31,329.22

Finding the Fourth Proportional to 106,212.78, 159,303.79 and 31,329.22

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Solution

The fourth proportional to 106,212.78, 159,303.79 and 31,329.22 is: 46,989.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,212.78 : 159,303.79 = 31,329.22 : x
  2. Step 2: Convert to fraction form
    106,212.78/159,303.79 = 31,329.22/x
  3. Step 3: Cross multiply
    106,212.78x = 159,303.79 × 31,329.22
  4. Step 4: Simplify right side
    106,212.78x = 4,990,863,483.74
  5. Step 5: Solve for x
    x = 4,990,863,483.74/106,212.78
  6. Step 6: Final answer
    x = 46,989.29

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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.