Finding the Fourth Proportional to 99,116.08, 136,781.20 and 53,794.44
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Solution
The fourth proportional to 99,116.08, 136,781.20 and 53,794.44 is: 74,236.88
Step by Step Solution
- Step 1: Write the proportion equation
99,116.08 : 136,781.20 = 53,794.44 : x - Step 2: Convert to fraction form
99,116.08/136,781.20 = 53,794.44/x - Step 3: Cross multiply
99,116.08x = 136,781.20 × 53,794.44 - Step 4: Simplify right side
99,116.08x = 7,358,068,056.53 - Step 5: Solve for x
x = 7,358,068,056.53/99,116.08 - Step 6: Final answer
x = 74,236.88
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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.