Finding the Fourth Proportional to 152,639.10, 210,654.90 and 84,677.99
Calculator
Solution
The fourth proportional to 152,639.10, 210,654.90 and 84,677.99 is: 116,862.80
Step by Step Solution
- Step 1: Write the proportion equation
152,639.10 : 210,654.90 = 84,677.99 : x - Step 2: Convert to fraction form
152,639.10/210,654.90 = 84,677.99/x - Step 3: Cross multiply
152,639.10x = 210,654.90 × 84,677.99 - Step 4: Simplify right side
152,639.10x = 17,837,832,462.38 - Step 5: Solve for x
x = 17,837,832,462.38/152,639.10 - Step 6: Final answer
x = 116,862.80
Related Problems
Find fourth proportional to 76,319.55, 105,327.45 and 42,338.99
Half scale
Find fourth proportional to 305,278.20, 421,309.80 and 169,355.97
Double scale
Find fourth proportional to 152,640.10, 210,656.28 and 84,678.99
Similar ratio
Find fourth proportional to 228,958.65, 315,982.35 and 127,016.98
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.