Home / 99,890-154,659

Finding the Third Proportional to 99,890 and 154,659

Calculator

Solution

The third proportional to 99,890 and 154,659 is: 239,457.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,890 : 154,659 = 154,659 : x
  2. Step 2: Convert to fraction form
    99,890/154,659 = 154,659/x
  3. Step 3: Cross multiply
    99,890x = 154,659 × 154,659
  4. Step 4: Simplify right side
    99,890x = 23,919,406,281
  5. Step 5: Solve for x
    x = 23,919,406,281/99,890
  6. Step 6: Final answer
    x = 239,457.47

Related Problems

Find third proportional to 49,945 and 77,329.50
Half scale
Find third proportional to 199,780 and 309,318
Double scale
Find third proportional to 99,892 and 154,662
Similar ratio
Find third proportional to 149,835 and 231,988.50
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.