Finding the Fourth Proportional to 159,181.49, 219,686.56 and 91,207.48
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Solution
The fourth proportional to 159,181.49, 219,686.56 and 91,207.48 is: 125,875.55
Step by Step Solution
- Step 1: Write the proportion equation
159,181.49 : 219,686.56 = 91,207.48 : x - Step 2: Convert to fraction form
159,181.49/219,686.56 = 91,207.48/x - Step 3: Cross multiply
159,181.49x = 219,686.56 × 91,207.48 - Step 4: Simplify right side
159,181.49x = 20,037,057,527.47 - Step 5: Solve for x
x = 20,037,057,527.47/159,181.49 - Step 6: Final answer
x = 125,875.55
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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.