Finding the Fourth Proportional to 135,007.20, 202,219.20 and 117,511.20
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Solution
The fourth proportional to 135,007.20, 202,219.20 and 117,511.20 is: 176,012.99
Step by Step Solution
- Step 1: Write the proportion equation
135,007.20 : 202,219.20 = 117,511.20 : x - Step 2: Convert to fraction form
135,007.20/202,219.20 = 117,511.20/x - Step 3: Cross multiply
135,007.20x = 202,219.20 × 117,511.20 - Step 4: Simplify right side
135,007.20x = 23,763,020,855.04 - Step 5: Solve for x
x = 23,763,020,855.04/135,007.20 - Step 6: Final answer
x = 176,012.99
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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.