Finding the Fourth Proportional to 118,191.80, 177,320.55 and 65,638.19
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Solution
The fourth proportional to 118,191.80, 177,320.55 and 65,638.19 is: 98,475.53
Step by Step Solution
- Step 1: Write the proportion equation
118,191.80 : 177,320.55 = 65,638.19 : x - Step 2: Convert to fraction form
118,191.80/177,320.55 = 65,638.19/x - Step 3: Cross multiply
118,191.80x = 177,320.55 × 65,638.19 - Step 4: Simplify right side
118,191.80x = 11,638,999,951.80 - Step 5: Solve for x
x = 11,638,999,951.80/118,191.80 - Step 6: Final answer
x = 98,475.53
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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.