Finding the Fourth Proportional to 151,523.48, 209,102.12 and 83,539.98
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Solution
The fourth proportional to 151,523.48, 209,102.12 and 83,539.98 is: 115,285.02
Step by Step Solution
- Step 1: Write the proportion equation
151,523.48 : 209,102.12 = 83,539.98 : x - Step 2: Convert to fraction form
151,523.48/209,102.12 = 83,539.98/x - Step 3: Cross multiply
151,523.48x = 209,102.12 × 83,539.98 - Step 4: Simplify right side
151,523.48x = 17,468,387,288.25 - Step 5: Solve for x
x = 17,468,387,288.25/151,523.48 - Step 6: Final answer
x = 115,285.02
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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.