Home / 106,433.40-159,477.30-66,919.80

Finding the Fourth Proportional to 106,433.40, 159,477.30 and 66,919.80

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Solution

The fourth proportional to 106,433.40, 159,477.30 and 66,919.80 is: 100,271.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,433.40 : 159,477.30 = 66,919.80 : x
  2. Step 2: Convert to fraction form
    106,433.40/159,477.30 = 66,919.80/x
  3. Step 3: Cross multiply
    106,433.40x = 159,477.30 × 66,919.80
  4. Step 4: Simplify right side
    106,433.40x = 10,672,189,020.54
  5. Step 5: Solve for x
    x = 10,672,189,020.54/106,433.40
  6. Step 6: Final answer
    x = 100,271.05

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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.