Home / 133.59-184.34-78.35

Finding the Fourth Proportional to 133.59, 184.34 and 78.35

Calculator

Solution

The fourth proportional to 133.59, 184.34 and 78.35 is: 108.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.59 : 184.34 = 78.35 : x
  2. Step 2: Convert to fraction form
    133.59/184.34 = 78.35/x
  3. Step 3: Cross multiply
    133.59x = 184.34 × 78.35
  4. Step 4: Simplify right side
    133.59x = 14,443.13
  5. Step 5: Solve for x
    x = 14,443.13/133.59
  6. Step 6: Final answer
    x = 108.11

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.