Finding the Fourth Proportional to 148,548.20, 204,996.84 and 84,885.84
Calculator
Solution
The fourth proportional to 148,548.20, 204,996.84 and 84,885.84 is: 117,142.65
Step by Step Solution
- Step 1: Write the proportion equation
148,548.20 : 204,996.84 = 84,885.84 : x - Step 2: Convert to fraction form
148,548.20/204,996.84 = 84,885.84/x - Step 3: Cross multiply
148,548.20x = 204,996.84 × 84,885.84 - Step 4: Simplify right side
148,548.20x = 17,401,328,960.75 - Step 5: Solve for x
x = 17,401,328,960.75/148,548.20 - Step 6: Final answer
x = 117,142.65
Related Problems
Find fourth proportional to 74,274.10, 102,498.42 and 42,442.92
Half scale
Find fourth proportional to 297,096.39, 409,993.68 and 169,771.68
Double scale
Find fourth proportional to 148,549.20, 204,998.22 and 84,886.84
Similar ratio
Find fourth proportional to 222,822.29, 307,495.26 and 127,328.76
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.