Home / 78,810-119,670

Finding the Third Proportional to 78,810 and 119,670

Calculator

Solution

The third proportional to 78,810 and 119,670 is: 181,714.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,810 : 119,670 = 119,670 : x
  2. Step 2: Convert to fraction form
    78,810/119,670 = 119,670/x
  3. Step 3: Cross multiply
    78,810x = 119,670 × 119,670
  4. Step 4: Simplify right side
    78,810x = 14,320,908,900
  5. Step 5: Solve for x
    x = 14,320,908,900/78,810
  6. Step 6: Final answer
    x = 181,714.36

Related Problems

Find third proportional to 39,405 and 59,835
Half scale
Find third proportional to 157,620 and 239,340
Double scale
Find third proportional to 78,812 and 119,673
Similar ratio
Find third proportional to 118,215 and 179,505
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.