Finding the Fourth Proportional to 151,712.35, 209,313.12 and 98,028.99
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Solution
The fourth proportional to 151,712.35, 209,313.12 and 98,028.99 is: 135,247.75
Step by Step Solution
- Step 1: Write the proportion equation
151,712.35 : 209,313.12 = 98,028.99 : x - Step 2: Convert to fraction form
151,712.35/209,313.12 = 98,028.99/x - Step 3: Cross multiply
151,712.35x = 209,313.12 × 98,028.99 - Step 4: Simplify right side
151,712.35x = 20,518,753,747.35 - Step 5: Solve for x
x = 20,518,753,747.35/151,712.35 - Step 6: Final answer
x = 135,247.75
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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.