Finding the Fourth Proportional to 151,914.94, 209,701.67 and 135,971.71
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Solution
The fourth proportional to 151,914.94, 209,701.67 and 135,971.71 is: 187,693.81
Step by Step Solution
- Step 1: Write the proportion equation
151,914.94 : 209,701.67 = 135,971.71 : x - Step 2: Convert to fraction form
151,914.94/209,701.67 = 135,971.71/x - Step 3: Cross multiply
151,914.94x = 209,701.67 × 135,971.71 - Step 4: Simplify right side
151,914.94x = 28,513,493,611.25 - Step 5: Solve for x
x = 28,513,493,611.25/151,914.94 - Step 6: Final answer
x = 187,693.81
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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.