Home / 78,490-117,557

Finding the Third Proportional to 78,490 and 117,557

Calculator

Solution

The third proportional to 78,490 and 117,557 is: 176,068.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,490 : 117,557 = 117,557 : x
  2. Step 2: Convert to fraction form
    78,490/117,557 = 117,557/x
  3. Step 3: Cross multiply
    78,490x = 117,557 × 117,557
  4. Step 4: Simplify right side
    78,490x = 13,819,648,249
  5. Step 5: Solve for x
    x = 13,819,648,249/78,490
  6. Step 6: Final answer
    x = 176,068.90

Related Problems

Find third proportional to 39,245 and 58,778.50
Half scale
Find third proportional to 156,980 and 235,114
Double scale
Find third proportional to 78,492 and 117,560
Similar ratio
Find third proportional to 117,735 and 176,335.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.