Finding the Fourth Proportional to 118,406.07, 177,604.25 and 65,781.99
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Solution
The fourth proportional to 118,406.07, 177,604.25 and 65,781.99 is: 98,670.28
Step by Step Solution
- Step 1: Write the proportion equation
118,406.07 : 177,604.25 = 65,781.99 : x - Step 2: Convert to fraction form
118,406.07/177,604.25 = 65,781.99/x - Step 3: Cross multiply
118,406.07x = 177,604.25 × 65,781.99 - Step 4: Simplify right side
118,406.07x = 11,683,160,668.55 - Step 5: Solve for x
x = 11,683,160,668.55/118,406.07 - Step 6: Final answer
x = 98,670.28
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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.