Finding the Fourth Proportional to 124,352.96, 171,634.76 and 79,022.09
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Solution
The fourth proportional to 124,352.96, 171,634.76 and 79,022.09 is: 109,068.07
Step by Step Solution
- Step 1: Write the proportion equation
124,352.96 : 171,634.76 = 79,022.09 : x - Step 2: Convert to fraction form
124,352.96/171,634.76 = 79,022.09/x - Step 3: Cross multiply
124,352.96x = 171,634.76 × 79,022.09 - Step 4: Simplify right side
124,352.96x = 13,562,936,198.56 - Step 5: Solve for x
x = 13,562,936,198.56/124,352.96 - Step 6: Final answer
x = 109,068.07
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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.