Finding the Fourth Proportional to 126,854.84, 174,975.28 and 81,590.08
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Solution
The fourth proportional to 126,854.84, 174,975.28 and 81,590.08 is: 112,540.03
Step by Step Solution
- Step 1: Write the proportion equation
126,854.84 : 174,975.28 = 81,590.08 : x - Step 2: Convert to fraction form
126,854.84/174,975.28 = 81,590.08/x - Step 3: Cross multiply
126,854.84x = 174,975.28 × 81,590.08 - Step 4: Simplify right side
126,854.84x = 14,276,247,093.22 - Step 5: Solve for x
x = 14,276,247,093.22/126,854.84 - Step 6: Final answer
x = 112,540.03
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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.