Finding the Fourth Proportional to 99,220.08, 136,924.71 and 53,898.96
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Solution
The fourth proportional to 99,220.08, 136,924.71 and 53,898.96 is: 74,381.11
Step by Step Solution
- Step 1: Write the proportion equation
99,220.08 : 136,924.71 = 53,898.96 : x - Step 2: Convert to fraction form
99,220.08/136,924.71 = 53,898.96/x - Step 3: Cross multiply
99,220.08x = 136,924.71 × 53,898.96 - Step 4: Simplify right side
99,220.08x = 7,380,099,467.30 - Step 5: Solve for x
x = 7,380,099,467.30/99,220.08 - Step 6: Final answer
x = 74,381.11
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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.