Finding the Fourth Proportional to 126,782.61, 174,971.74 and 70,193.99
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Solution
The fourth proportional to 126,782.61, 174,971.74 and 70,193.99 is: 96,874.20
Step by Step Solution
- Step 1: Write the proportion equation
126,782.61 : 174,971.74 = 70,193.99 : x - Step 2: Convert to fraction form
126,782.61/174,971.74 = 70,193.99/x - Step 3: Cross multiply
126,782.61x = 174,971.74 × 70,193.99 - Step 4: Simplify right side
126,782.61x = 12,281,964,305.90 - Step 5: Solve for x
x = 12,281,964,305.90/126,782.61 - Step 6: Final answer
x = 96,874.20
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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.