Finding the Fourth Proportional to 151,328.25, 208,832.99 and 87,702.95
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Solution
The fourth proportional to 151,328.25, 208,832.99 and 87,702.95 is: 121,030.07
Step by Step Solution
- Step 1: Write the proportion equation
151,328.25 : 208,832.99 = 87,702.95 : x - Step 2: Convert to fraction form
151,328.25/208,832.99 = 87,702.95/x - Step 3: Cross multiply
151,328.25x = 208,832.99 × 87,702.95 - Step 4: Simplify right side
151,328.25x = 18,315,269,363.89 - Step 5: Solve for x
x = 18,315,269,363.89/151,328.25 - Step 6: Final answer
x = 121,030.07
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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.