Home / 66,559-144,781

Finding the Third Proportional to 66,559 and 144,781

Calculator

Solution

The third proportional to 66,559 and 144,781 is: 314,931.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,559 : 144,781 = 144,781 : x
  2. Step 2: Convert to fraction form
    66,559/144,781 = 144,781/x
  3. Step 3: Cross multiply
    66,559x = 144,781 × 144,781
  4. Step 4: Simplify right side
    66,559x = 20,961,537,961
  5. Step 5: Solve for x
    x = 20,961,537,961/66,559
  6. Step 6: Final answer
    x = 314,931.68

Related Problems

Find third proportional to 33,279.50 and 72,390.50
Half scale
Find third proportional to 133,118 and 289,562
Double scale
Find third proportional to 66,561 and 144,785
Similar ratio
Find third proportional to 99,838.50 and 217,171.50
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.