Finding the Fourth Proportional to 135,044.26, 186,335.56 and 81,332.75
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Solution
The fourth proportional to 135,044.26, 186,335.56 and 81,332.75 is: 112,223.83
Step by Step Solution
- Step 1: Write the proportion equation
135,044.26 : 186,335.56 = 81,332.75 : x - Step 2: Convert to fraction form
135,044.26/186,335.56 = 81,332.75/x - Step 3: Cross multiply
135,044.26x = 186,335.56 × 81,332.75 - Step 4: Simplify right side
135,044.26x = 15,155,183,517.59 - Step 5: Solve for x
x = 15,155,183,517.59/135,044.26 - Step 6: Final answer
x = 112,223.83
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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.