Finding the Fourth Proportional to 114,486.06, 157,824.87 and 80,390.70
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Solution
The fourth proportional to 114,486.06, 157,824.87 and 80,390.70 is: 110,822.68
Step by Step Solution
- Step 1: Write the proportion equation
114,486.06 : 157,824.87 = 80,390.70 : x - Step 2: Convert to fraction form
114,486.06/157,824.87 = 80,390.70/x - Step 3: Cross multiply
114,486.06x = 157,824.87 × 80,390.70 - Step 4: Simplify right side
114,486.06x = 12,687,651,776.71 - Step 5: Solve for x
x = 12,687,651,776.71/114,486.06 - Step 6: Final answer
x = 110,822.68
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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.