Finding the Fourth Proportional to 126,652.80, 174,929.58 and 101,247.15
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Solution
The fourth proportional to 126,652.80, 174,929.58 and 101,247.15 is: 139,839.95
Step by Step Solution
- Step 1: Write the proportion equation
126,652.80 : 174,929.58 = 101,247.15 : x - Step 2: Convert to fraction form
126,652.80/174,929.58 = 101,247.15/x - Step 3: Cross multiply
126,652.80x = 174,929.58 × 101,247.15 - Step 4: Simplify right side
126,652.80x = 17,711,121,425.70 - Step 5: Solve for x
x = 17,711,121,425.70/126,652.80 - Step 6: Final answer
x = 139,839.95
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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.