Finding the Fourth Proportional to 115,386.80, 173,220.60 and 73,266.80
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Solution
The fourth proportional to 115,386.80, 173,220.60 and 73,266.80 is: 109,989.35
Step by Step Solution
- Step 1: Write the proportion equation
115,386.80 : 173,220.60 = 73,266.80 : x - Step 2: Convert to fraction form
115,386.80/173,220.60 = 73,266.80/x - Step 3: Cross multiply
115,386.80x = 173,220.60 × 73,266.80 - Step 4: Simplify right side
115,386.80x = 12,691,319,056.08 - Step 5: Solve for x
x = 12,691,319,056.08/115,386.80 - Step 6: Final answer
x = 109,989.35
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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.