Finding the Fourth Proportional to 115,129.37, 158,836.38 and 69,774.63
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Solution
The fourth proportional to 115,129.37, 158,836.38 and 69,774.63 is: 96,263.45
Step by Step Solution
- Step 1: Write the proportion equation
115,129.37 : 158,836.38 = 69,774.63 : x - Step 2: Convert to fraction form
115,129.37/158,836.38 = 69,774.63/x - Step 3: Cross multiply
115,129.37x = 158,836.38 × 69,774.63 - Step 4: Simplify right side
115,129.37x = 11,082,749,645.04 - Step 5: Solve for x
x = 11,082,749,645.04/115,129.37 - Step 6: Final answer
x = 96,263.45
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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.