Finding the Fourth Proportional to 190,986.26, 286,528.08 and 89,764.71
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Solution
The fourth proportional to 190,986.26, 286,528.08 and 89,764.71 is: 134,669.95
Step by Step Solution
- Step 1: Write the proportion equation
190,986.26 : 286,528.08 = 89,764.71 : x - Step 2: Convert to fraction form
190,986.26/286,528.08 = 89,764.71/x - Step 3: Cross multiply
190,986.26x = 286,528.08 × 89,764.71 - Step 4: Simplify right side
190,986.26x = 25,720,109,270.19 - Step 5: Solve for x
x = 25,720,109,270.19/190,986.26 - Step 6: Final answer
x = 134,669.95
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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.