Finding the Fourth Proportional to 112,245.99, 154,899.14 and 61,944.63
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Solution
The fourth proportional to 112,245.99, 154,899.14 and 61,944.63 is: 85,483.41
Step by Step Solution
- Step 1: Write the proportion equation
112,245.99 : 154,899.14 = 61,944.63 : x - Step 2: Convert to fraction form
112,245.99/154,899.14 = 61,944.63/x - Step 3: Cross multiply
112,245.99x = 154,899.14 × 61,944.63 - Step 4: Simplify right side
112,245.99x = 9,595,169,914.62 - Step 5: Solve for x
x = 9,595,169,914.62/112,245.99 - Step 6: Final answer
x = 85,483.41
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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.