Finding the Fourth Proportional to 151,768.08, 209,430.77 and 91,358.28
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Solution
The fourth proportional to 151,768.08, 209,430.77 and 91,358.28 is: 126,068.90
Step by Step Solution
- Step 1: Write the proportion equation
151,768.08 : 209,430.77 = 91,358.28 : x - Step 2: Convert to fraction form
151,768.08/209,430.77 = 91,358.28/x - Step 3: Cross multiply
151,768.08x = 209,430.77 × 91,358.28 - Step 4: Simplify right side
151,768.08x = 19,133,234,469.48 - Step 5: Solve for x
x = 19,133,234,469.48/151,768.08 - Step 6: Final answer
x = 126,068.90
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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.