Finding the Fourth Proportional to 115,913.20, 173,818.60 and 53,602.80
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Solution
The fourth proportional to 115,913.20, 173,818.60 and 53,602.80 is: 80,380.52
Step by Step Solution
- Step 1: Write the proportion equation
115,913.20 : 173,818.60 = 53,602.80 : x - Step 2: Convert to fraction form
115,913.20/173,818.60 = 53,602.80/x - Step 3: Cross multiply
115,913.20x = 173,818.60 × 53,602.80 - Step 4: Simplify right side
115,913.20x = 9,317,163,652.08 - Step 5: Solve for x
x = 9,317,163,652.08/115,913.20 - Step 6: Final answer
x = 80,380.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.