Finding the Fourth Proportional to 115,555.31, 159,320.93 and 88,364.62
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Solution
The fourth proportional to 115,555.31, 159,320.93 and 88,364.62 is: 121,831.99
Step by Step Solution
- Step 1: Write the proportion equation
115,555.31 : 159,320.93 = 88,364.62 : x - Step 2: Convert to fraction form
115,555.31/159,320.93 = 88,364.62/x - Step 3: Cross multiply
115,555.31x = 159,320.93 × 88,364.62 - Step 4: Simplify right side
115,555.31x = 14,078,333,194.82 - Step 5: Solve for x
x = 14,078,333,194.82/115,555.31 - Step 6: Final answer
x = 121,831.99
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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.