Finding the Fourth Proportional to 115,651.24, 159,602.58 and 65,353.48
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Solution
The fourth proportional to 115,651.24, 159,602.58 and 65,353.48 is: 90,189.99
Step by Step Solution
- Step 1: Write the proportion equation
115,651.24 : 159,602.58 = 65,353.48 : x - Step 2: Convert to fraction form
115,651.24/159,602.58 = 65,353.48/x - Step 3: Cross multiply
115,651.24x = 159,602.58 × 65,353.48 - Step 4: Simplify right side
115,651.24x = 10,430,584,019.98 - Step 5: Solve for x
x = 10,430,584,019.98/115,651.24 - Step 6: Final answer
x = 90,189.99
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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.