Home / 67,875-99,840

Finding the Third Proportional to 67,875 and 99,840

Calculator

Solution

The third proportional to 67,875 and 99,840 is: 146,858.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,875 : 99,840 = 99,840 : x
  2. Step 2: Convert to fraction form
    67,875/99,840 = 99,840/x
  3. Step 3: Cross multiply
    67,875x = 99,840 × 99,840
  4. Step 4: Simplify right side
    67,875x = 9,968,025,600
  5. Step 5: Solve for x
    x = 9,968,025,600/67,875
  6. Step 6: Final answer
    x = 146,858.57

Related Problems

Find third proportional to 33,937.50 and 49,920
Half scale
Find third proportional to 135,750 and 199,680
Double scale
Find third proportional to 67,877 and 99,843
Similar ratio
Find third proportional to 101,812.50 and 149,760
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.