Finding the Fourth Proportional to 116,507.35, 160,763.70 and 65,512.99
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Solution
The fourth proportional to 116,507.35, 160,763.70 and 65,512.99 is: 90,398.68
Step by Step Solution
- Step 1: Write the proportion equation
116,507.35 : 160,763.70 = 65,512.99 : x - Step 2: Convert to fraction form
116,507.35/160,763.70 = 65,512.99/x - Step 3: Cross multiply
116,507.35x = 160,763.70 × 65,512.99 - Step 4: Simplify right side
116,507.35x = 10,532,110,670.46 - Step 5: Solve for x
x = 10,532,110,670.46/116,507.35 - Step 6: Final answer
x = 90,398.68
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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.