Home / 69,138-97,915.50

Finding the Third Proportional to 69,138 and 97,915.50

Calculator

Solution

The third proportional to 69,138 and 97,915.50 is: 138,671.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,138 : 97,915.50 = 97,915.50 : x
  2. Step 2: Convert to fraction form
    69,138/97,915.50 = 97,915.50/x
  3. Step 3: Cross multiply
    69,138x = 97,915.50 × 97,915.50
  4. Step 4: Simplify right side
    69,138x = 9,587,445,140.25
  5. Step 5: Solve for x
    x = 9,587,445,140.25/69,138
  6. Step 6: Final answer
    x = 138,671.14

Related Problems

Find third proportional to 34,569 and 48,957.75
Half scale
Find third proportional to 138,276 and 195,831
Double scale
Find third proportional to 69,140 and 97,918
Similar ratio
Find third proportional to 103,707 and 146,873.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.