Finding the Fourth Proportional to 157,785.08, 217,763.99 and 89,788.82
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Solution
The fourth proportional to 157,785.08, 217,763.99 and 89,788.82 is: 123,920.28
Step by Step Solution
- Step 1: Write the proportion equation
157,785.08 : 217,763.99 = 89,788.82 : x - Step 2: Convert to fraction form
157,785.08/217,763.99 = 89,788.82/x - Step 3: Cross multiply
157,785.08x = 217,763.99 × 89,788.82 - Step 4: Simplify right side
157,785.08x = 19,552,770,162.83 - Step 5: Solve for x
x = 19,552,770,162.83/157,785.08 - Step 6: Final answer
x = 123,920.28
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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.