Finding the Fourth Proportional to 126,471.18, 174,528.99 and 69,881.34
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Solution
The fourth proportional to 126,471.18, 174,528.99 and 69,881.34 is: 96,435.56
Step by Step Solution
- Step 1: Write the proportion equation
126,471.18 : 174,528.99 = 69,881.34 : x - Step 2: Convert to fraction form
126,471.18/174,528.99 = 69,881.34/x - Step 3: Cross multiply
126,471.18x = 174,528.99 × 69,881.34 - Step 4: Simplify right side
126,471.18x = 12,196,319,690.05 - Step 5: Solve for x
x = 12,196,319,690.05/126,471.18 - Step 6: Final answer
x = 96,435.56
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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.