Finding the Fourth Proportional to 173,428.99, 239,359.40 and 105,467.29
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Solution
The fourth proportional to 173,428.99, 239,359.40 and 105,467.29 is: 145,561.52
Step by Step Solution
- Step 1: Write the proportion equation
173,428.99 : 239,359.40 = 105,467.29 : x - Step 2: Convert to fraction form
173,428.99/239,359.40 = 105,467.29/x - Step 3: Cross multiply
173,428.99x = 239,359.40 × 105,467.29 - Step 4: Simplify right side
173,428.99x = 25,244,587,254.03 - Step 5: Solve for x
x = 25,244,587,254.03/173,428.99 - Step 6: Final answer
x = 145,561.52
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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.