Finding the Fourth Proportional to 114,571.08, 157,991.58 and 76,319.64
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Solution
The fourth proportional to 114,571.08, 157,991.58 and 76,319.64 is: 105,243.49
Step by Step Solution
- Step 1: Write the proportion equation
114,571.08 : 157,991.58 = 76,319.64 : x - Step 2: Convert to fraction form
114,571.08/157,991.58 = 76,319.64/x - Step 3: Cross multiply
114,571.08x = 157,991.58 × 76,319.64 - Step 4: Simplify right side
114,571.08x = 12,057,860,508.63 - Step 5: Solve for x
x = 12,057,860,508.63/114,571.08 - Step 6: Final answer
x = 105,243.49
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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.