Finding the Fourth Proportional to 115,360.80, 159,197.88 and 65,059.68
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Solution
The fourth proportional to 115,360.80, 159,197.88 and 65,059.68 is: 89,782.34
Step by Step Solution
- Step 1: Write the proportion equation
115,360.80 : 159,197.88 = 65,059.68 : x - Step 2: Convert to fraction form
115,360.80/159,197.88 = 65,059.68/x - Step 3: Cross multiply
115,360.80x = 159,197.88 × 65,059.68 - Step 4: Simplify right side
115,360.80x = 10,357,363,129.48 - Step 5: Solve for x
x = 10,357,363,129.48/115,360.80 - Step 6: Final answer
x = 89,782.34
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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.