Home / 106,115.78-159,118.86-31,226.18

Finding the Fourth Proportional to 106,115.78, 159,118.86 and 31,226.18

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Solution

The fourth proportional to 106,115.78, 159,118.86 and 31,226.18 is: 46,823.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,115.78 : 159,118.86 = 31,226.18 : x
  2. Step 2: Convert to fraction form
    106,115.78/159,118.86 = 31,226.18/x
  3. Step 3: Cross multiply
    106,115.78x = 159,118.86 × 31,226.18
  4. Step 4: Simplify right side
    106,115.78x = 4,968,674,163.75
  5. Step 5: Solve for x
    x = 4,968,674,163.75/106,115.78
  6. Step 6: Final answer
    x = 46,823.14

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1.5x scale

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.