Finding the Fourth Proportional to 100,333.08, 138,457.62 and 55,621.08
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Solution
The fourth proportional to 100,333.08, 138,457.62 and 55,621.08 is: 76,755.96
Step by Step Solution
- Step 1: Write the proportion equation
100,333.08 : 138,457.62 = 55,621.08 : x - Step 2: Convert to fraction form
100,333.08/138,457.62 = 55,621.08/x - Step 3: Cross multiply
100,333.08x = 138,457.62 × 55,621.08 - Step 4: Simplify right side
100,333.08x = 7,701,162,358.63 - Step 5: Solve for x
x = 7,701,162,358.63/100,333.08 - Step 6: Final answer
x = 76,755.96
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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.