Finding the Fourth Proportional to 157,579.74, 217,455.08 and 89,604.14
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Solution
The fourth proportional to 157,579.74, 217,455.08 and 89,604.14 is: 123,650.88
Step by Step Solution
- Step 1: Write the proportion equation
157,579.74 : 217,455.08 = 89,604.14 : x - Step 2: Convert to fraction form
157,579.74/217,455.08 = 89,604.14/x - Step 3: Cross multiply
157,579.74x = 217,455.08 × 89,604.14 - Step 4: Simplify right side
157,579.74x = 19,484,873,896.74 - Step 5: Solve for x
x = 19,484,873,896.74/157,579.74 - Step 6: Final answer
x = 123,650.88
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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.