Home / 120,028.80-179,991.36-49,860.12

Finding the Fourth Proportional to 120,028.80, 179,991.36 and 49,860.12

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Solution

The fourth proportional to 120,028.80, 179,991.36 and 49,860.12 is: 74,768.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,028.80 : 179,991.36 = 49,860.12 : x
  2. Step 2: Convert to fraction form
    120,028.80/179,991.36 = 49,860.12/x
  3. Step 3: Cross multiply
    120,028.80x = 179,991.36 × 49,860.12
  4. Step 4: Simplify right side
    120,028.80x = 8,974,390,808.56
  5. Step 5: Solve for x
    x = 8,974,390,808.56/120,028.80
  6. Step 6: Final answer
    x = 74,768.65

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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.