Home / 84,088-129,288

Finding the Third Proportional to 84,088 and 129,288

Calculator

Solution

The third proportional to 84,088 and 129,288 is: 198,784.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,088 : 129,288 = 129,288 : x
  2. Step 2: Convert to fraction form
    84,088/129,288 = 129,288/x
  3. Step 3: Cross multiply
    84,088x = 129,288 × 129,288
  4. Step 4: Simplify right side
    84,088x = 16,715,386,944
  5. Step 5: Solve for x
    x = 16,715,386,944/84,088
  6. Step 6: Final answer
    x = 198,784.45

Related Problems

Find third proportional to 42,044 and 64,644
Half scale
Find third proportional to 168,176 and 258,576
Double scale
Find third proportional to 84,090 and 129,291
Similar ratio
Find third proportional to 126,132 and 193,932
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.