Finding the Fourth Proportional to 114,247.68, 157,639.38 and 71,781.68
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Solution
The fourth proportional to 114,247.68, 157,639.38 and 71,781.68 is: 99,044.63
Step by Step Solution
- Step 1: Write the proportion equation
114,247.68 : 157,639.38 = 71,781.68 : x - Step 2: Convert to fraction form
114,247.68/157,639.38 = 71,781.68/x - Step 3: Cross multiply
114,247.68x = 157,639.38 × 71,781.68 - Step 4: Simplify right side
114,247.68x = 11,315,619,530.56 - Step 5: Solve for x
x = 11,315,619,530.56/114,247.68 - Step 6: Final answer
x = 99,044.63
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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.