Finding the Fourth Proportional to 97,718.12, 134,850.78 and 53,006.12
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Solution
The fourth proportional to 97,718.12, 134,850.78 and 53,006.12 is: 73,148.32
Step by Step Solution
- Step 1: Write the proportion equation
97,718.12 : 134,850.78 = 53,006.12 : x - Step 2: Convert to fraction form
97,718.12/134,850.78 = 53,006.12/x - Step 3: Cross multiply
97,718.12x = 134,850.78 × 53,006.12 - Step 4: Simplify right side
97,718.12x = 7,147,916,626.77 - Step 5: Solve for x
x = 7,147,916,626.77/97,718.12 - Step 6: Final answer
x = 73,148.32
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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.