Finding the Fourth Proportional to 126,590.74, 174,536.44 and 81,188.62
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Solution
The fourth proportional to 126,590.74, 174,536.44 and 81,188.62 is: 111,938.46
Step by Step Solution
- Step 1: Write the proportion equation
126,590.74 : 174,536.44 = 81,188.62 : x - Step 2: Convert to fraction form
126,590.74/174,536.44 = 81,188.62/x - Step 3: Cross multiply
126,590.74x = 174,536.44 × 81,188.62 - Step 4: Simplify right side
126,590.74x = 14,170,372,703.31 - Step 5: Solve for x
x = 14,170,372,703.31/126,590.74 - Step 6: Final answer
x = 111,938.46
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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.