Finding the Fourth Proportional to 126,782.72, 174,965.62 and 70,194.09
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Solution
The fourth proportional to 126,782.72, 174,965.62 and 70,194.09 is: 96,870.88
Step by Step Solution
- Step 1: Write the proportion equation
126,782.72 : 174,965.62 = 70,194.09 : x - Step 2: Convert to fraction form
126,782.72/174,965.62 = 70,194.09/x - Step 3: Cross multiply
126,782.72x = 174,965.62 × 70,194.09 - Step 4: Simplify right side
126,782.72x = 12,281,553,089.44 - Step 5: Solve for x
x = 12,281,553,089.44/126,782.72 - Step 6: Final answer
x = 96,870.88
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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.