Finding the Fourth Proportional to 79,177.16, 118,171.07 and 68,456.09
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Solution
The fourth proportional to 79,177.16, 118,171.07 and 68,456.09 is: 102,169.98
Step by Step Solution
- Step 1: Write the proportion equation
79,177.16 : 118,171.07 = 68,456.09 : x - Step 2: Convert to fraction form
79,177.16/118,171.07 = 68,456.09/x - Step 3: Cross multiply
79,177.16x = 118,171.07 × 68,456.09 - Step 4: Simplify right side
79,177.16x = 8,089,528,470.18 - Step 5: Solve for x
x = 8,089,528,470.18/79,177.16 - Step 6: Final answer
x = 102,169.98
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.