Finding the Fourth Proportional to 115,423.28, 173,212.68 and 45,294.32
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Solution
The fourth proportional to 115,423.28, 173,212.68 and 45,294.32 is: 67,971.99
Step by Step Solution
- Step 1: Write the proportion equation
115,423.28 : 173,212.68 = 45,294.32 : x - Step 2: Convert to fraction form
115,423.28/173,212.68 = 45,294.32/x - Step 3: Cross multiply
115,423.28x = 173,212.68 × 45,294.32 - Step 4: Simplify right side
115,423.28x = 7,845,550,555.98 - Step 5: Solve for x
x = 7,845,550,555.98/115,423.28 - Step 6: Final answer
x = 67,971.99
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1.5x scale
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.