Finding the Fourth Proportional to 165,728.21, 228,697.55 and 96,824.06
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Solution
The fourth proportional to 165,728.21, 228,697.55 and 96,824.06 is: 133,612.89
Step by Step Solution
- Step 1: Write the proportion equation
165,728.21 : 228,697.55 = 96,824.06 : x - Step 2: Convert to fraction form
165,728.21/228,697.55 = 96,824.06/x - Step 3: Cross multiply
165,728.21x = 228,697.55 × 96,824.06 - Step 4: Simplify right side
165,728.21x = 22,143,423,675.45 - Step 5: Solve for x
x = 22,143,423,675.45/165,728.21 - Step 6: Final answer
x = 133,612.89
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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.