Home / 129,628-194,442-42,076

Finding the Fourth Proportional to 129,628, 194,442 and 42,076

Calculator

Solution

The fourth proportional to 129,628, 194,442 and 42,076 is: 63,114

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,628 : 194,442 = 42,076 : x
  2. Step 2: Convert to fraction form
    129,628/194,442 = 42,076/x
  3. Step 3: Cross multiply
    129,628x = 194,442 × 42,076
  4. Step 4: Simplify right side
    129,628x = 8,181,341,592
  5. Step 5: Solve for x
    x = 8,181,341,592/129,628
  6. Step 6: Final answer
    x = 63,114

Related Problems

Find fourth proportional to 64,814, 97,221 and 21,038
Half scale
Find fourth proportional to 259,256, 388,884 and 84,152
Double scale
Find fourth proportional to 129,629, 194,443.50 and 42,077
Similar ratio
Find fourth proportional to 194,442, 291,663 and 63,114
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.