Finding the Fourth Proportional to 194,088.72, 291,132.90 and 87,347.91
Calculator
Solution
The fourth proportional to 194,088.72, 291,132.90 and 87,347.91 is: 131,021.78
Step by Step Solution
- Step 1: Write the proportion equation
194,088.72 : 291,132.90 = 87,347.91 : x - Step 2: Convert to fraction form
194,088.72/291,132.90 = 87,347.91/x - Step 3: Cross multiply
194,088.72x = 291,132.90 × 87,347.91 - Step 4: Simplify right side
194,088.72x = 25,429,850,347.24 - Step 5: Solve for x
x = 25,429,850,347.24/194,088.72 - Step 6: Final answer
x = 131,021.78
Related Problems
Find fourth proportional to 97,044.36, 145,566.45 and 43,673.96
Half scale
Find fourth proportional to 388,177.44, 582,265.80 and 174,695.82
Double scale
Find fourth proportional to 194,089.72, 291,134.40 and 87,348.91
Similar ratio
Find fourth proportional to 291,133.08, 436,699.35 and 131,021.87
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.