Home / 140,936-211,404-42,440

Finding the Fourth Proportional to 140,936, 211,404 and 42,440

Calculator

Solution

The fourth proportional to 140,936, 211,404 and 42,440 is: 63,660

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,936 : 211,404 = 42,440 : x
  2. Step 2: Convert to fraction form
    140,936/211,404 = 42,440/x
  3. Step 3: Cross multiply
    140,936x = 211,404 × 42,440
  4. Step 4: Simplify right side
    140,936x = 8,971,985,760
  5. Step 5: Solve for x
    x = 8,971,985,760/140,936
  6. Step 6: Final answer
    x = 63,660

Related Problems

Find fourth proportional to 70,468, 105,702 and 21,220
Half scale
Find fourth proportional to 281,872, 422,808 and 84,880
Double scale
Find fourth proportional to 140,937, 211,405.50 and 42,441
Similar ratio
Find fourth proportional to 211,404, 317,106 and 63,660
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.