Home / 178.90-268.19-70.66

Finding the Fourth Proportional to 178.90, 268.19 and 70.66

Calculator

Solution

The fourth proportional to 178.90, 268.19 and 70.66 is: 105.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.90 : 268.19 = 70.66 : x
  2. Step 2: Convert to fraction form
    178.90/268.19 = 70.66/x
  3. Step 3: Cross multiply
    178.90x = 268.19 × 70.66
  4. Step 4: Simplify right side
    178.90x = 18,950.31
  5. Step 5: Solve for x
    x = 18,950.31/178.90
  6. Step 6: Final answer
    x = 105.93

Related Problems

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.