Home / 88-117

Finding the Third Proportional to 88 and 117

Calculator

Solution

The third proportional to 88 and 117 is: 155.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    88 : 117 = 117 : x
  2. Step 2: Convert to fraction form
    88/117 = 117/x
  3. Step 3: Cross multiply
    88x = 117 × 117
  4. Step 4: Simplify right side
    88x = 13,689
  5. Step 5: Solve for x
    x = 13,689/88
  6. Step 6: Final answer
    x = 155.56

Related Problems

Find third proportional to 44 and 58.50
Half scale
Find third proportional to 176 and 234
Double scale
Find third proportional to 90 and 120
Similar ratio
Find third proportional to 132 and 175.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.