Finding the Fourth Proportional to 117,334.98, 162,055.94 and 79,543.62
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Solution
The fourth proportional to 117,334.98, 162,055.94 and 79,543.62 is: 109,860.81
Step by Step Solution
- Step 1: Write the proportion equation
117,334.98 : 162,055.94 = 79,543.62 : x - Step 2: Convert to fraction form
117,334.98/162,055.94 = 79,543.62/x - Step 3: Cross multiply
117,334.98x = 162,055.94 × 79,543.62 - Step 4: Simplify right side
117,334.98x = 12,890,515,712.38 - Step 5: Solve for x
x = 12,890,515,712.38/117,334.98 - Step 6: Final answer
x = 109,860.81
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.