Finding the Fourth Proportional to 118,819.56, 163,971.36 and 65,104.68
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Solution
The fourth proportional to 118,819.56, 163,971.36 and 65,104.68 is: 89,844.66
Step by Step Solution
- Step 1: Write the proportion equation
118,819.56 : 163,971.36 = 65,104.68 : x - Step 2: Convert to fraction form
118,819.56/163,971.36 = 65,104.68/x - Step 3: Cross multiply
118,819.56x = 163,971.36 × 65,104.68 - Step 4: Simplify right side
118,819.56x = 10,675,302,921.96 - Step 5: Solve for x
x = 10,675,302,921.96/118,819.56 - Step 6: Final answer
x = 89,844.66
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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.