Home / 120,021.09-179,920.35-41,116.56

Finding the Fourth Proportional to 120,021.09, 179,920.35 and 41,116.56

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Solution

The fourth proportional to 120,021.09, 179,920.35 and 41,116.56 is: 61,636.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,021.09 : 179,920.35 = 41,116.56 : x
  2. Step 2: Convert to fraction form
    120,021.09/179,920.35 = 41,116.56/x
  3. Step 3: Cross multiply
    120,021.09x = 179,920.35 × 41,116.56
  4. Step 4: Simplify right side
    120,021.09x = 7,397,705,866.00
  5. Step 5: Solve for x
    x = 7,397,705,866.00/120,021.09
  6. Step 6: Final answer
    x = 61,636.72

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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.