Home / 83,386.13-128,982.38

Finding the Third Proportional to 83,386.13 and 128,982.38

Calculator

Solution

The third proportional to 83,386.13 and 128,982.38 is: 199,511.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,386.13 : 128,982.38 = 128,982.38 : x
  2. Step 2: Convert to fraction form
    83,386.13/128,982.38 = 128,982.38/x
  3. Step 3: Cross multiply
    83,386.13x = 128,982.38 × 128,982.38
  4. Step 4: Simplify right side
    83,386.13x = 16,636,453,060.64
  5. Step 5: Solve for x
    x = 16,636,453,060.64/83,386.13
  6. Step 6: Final answer
    x = 199,511.05

Related Problems

Find third proportional to 41,693.06 and 64,491.19
Half scale
Find third proportional to 166,772.25 and 257,964.75
Double scale
Find third proportional to 83,388 and 128,985
Similar ratio
Find third proportional to 125,079.19 and 193,473.56
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.