Finding the Fourth Proportional to 107,991.05, 149,024.17 and 58,930.79
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Solution
The fourth proportional to 107,991.05, 149,024.17 and 58,930.79 is: 81,322.59
Step by Step Solution
- Step 1: Write the proportion equation
107,991.05 : 149,024.17 = 58,930.79 : x - Step 2: Convert to fraction form
107,991.05/149,024.17 = 58,930.79/x - Step 3: Cross multiply
107,991.05x = 149,024.17 × 58,930.79 - Step 4: Simplify right side
107,991.05x = 8,782,112,292.43 - Step 5: Solve for x
x = 8,782,112,292.43/107,991.05 - Step 6: Final answer
x = 81,322.59
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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.