Home / 125,328-172,968-72,336

Finding the Fourth Proportional to 125,328, 172,968 and 72,336

Calculator

Solution

The fourth proportional to 125,328, 172,968 and 72,336 is: 99,832.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,328 : 172,968 = 72,336 : x
  2. Step 2: Convert to fraction form
    125,328/172,968 = 72,336/x
  3. Step 3: Cross multiply
    125,328x = 172,968 × 72,336
  4. Step 4: Simplify right side
    125,328x = 12,511,813,248
  5. Step 5: Solve for x
    x = 12,511,813,248/125,328
  6. Step 6: Final answer
    x = 99,832.55

Related Problems

Find fourth proportional to 62,664, 86,484 and 36,168
Half scale
Find fourth proportional to 250,656, 345,936 and 144,672
Double scale
Find fourth proportional to 125,329, 172,969.38 and 72,337
Similar ratio
Find fourth proportional to 187,992, 259,452 and 108,504
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.