Home / 76,440-158,688

Finding the Third Proportional to 76,440 and 158,688

Calculator

Solution

The third proportional to 76,440 and 158,688 is: 329,433.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,440 : 158,688 = 158,688 : x
  2. Step 2: Convert to fraction form
    76,440/158,688 = 158,688/x
  3. Step 3: Cross multiply
    76,440x = 158,688 × 158,688
  4. Step 4: Simplify right side
    76,440x = 25,181,881,344
  5. Step 5: Solve for x
    x = 25,181,881,344/76,440
  6. Step 6: Final answer
    x = 329,433.30

Related Problems

Find third proportional to 38,220 and 79,344
Half scale
Find third proportional to 152,880 and 317,376
Double scale
Find third proportional to 76,442 and 158,692
Similar ratio
Find third proportional to 114,660 and 238,032
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.