Home / 76,580-117,680

Finding the Third Proportional to 76,580 and 117,680

Calculator

Solution

The third proportional to 76,580 and 117,680 is: 180,838.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,580 : 117,680 = 117,680 : x
  2. Step 2: Convert to fraction form
    76,580/117,680 = 117,680/x
  3. Step 3: Cross multiply
    76,580x = 117,680 × 117,680
  4. Step 4: Simplify right side
    76,580x = 13,848,582,400
  5. Step 5: Solve for x
    x = 13,848,582,400/76,580
  6. Step 6: Final answer
    x = 180,838.11

Related Problems

Find third proportional to 38,290 and 58,840
Half scale
Find third proportional to 153,160 and 235,360
Double scale
Find third proportional to 76,582 and 117,683
Similar ratio
Find third proportional to 114,870 and 176,520
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.