Finding the Fourth Proportional to 115,338.18, 159,166.71 and 65,037.18
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Solution
The fourth proportional to 115,338.18, 159,166.71 and 65,037.18 is: 89,751.32
Step by Step Solution
- Step 1: Write the proportion equation
115,338.18 : 159,166.71 = 65,037.18 : x - Step 2: Convert to fraction form
115,338.18/159,166.71 = 65,037.18/x - Step 3: Cross multiply
115,338.18x = 159,166.71 × 65,037.18 - Step 4: Simplify right side
115,338.18x = 10,351,753,968.28 - Step 5: Solve for x
x = 10,351,753,968.28/115,338.18 - Step 6: Final answer
x = 89,751.32
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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.