Home / 67,890-147,828

Finding the Third Proportional to 67,890 and 147,828

Calculator

Solution

The third proportional to 67,890 and 147,828 is: 321,890.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,890 : 147,828 = 147,828 : x
  2. Step 2: Convert to fraction form
    67,890/147,828 = 147,828/x
  3. Step 3: Cross multiply
    67,890x = 147,828 × 147,828
  4. Step 4: Simplify right side
    67,890x = 21,853,117,584
  5. Step 5: Solve for x
    x = 21,853,117,584/67,890
  6. Step 6: Final answer
    x = 321,890.08

Related Problems

Find third proportional to 33,945 and 73,914
Half scale
Find third proportional to 135,780 and 295,656
Double scale
Find third proportional to 67,892 and 147,832
Similar ratio
Find third proportional to 101,835 and 221,742
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.