Finding the Fourth Proportional to 106,936.93, 147,605.84 and 61,645.20
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Solution
The fourth proportional to 106,936.93, 147,605.84 and 61,645.20 is: 85,089.33
Step by Step Solution
- Step 1: Write the proportion equation
106,936.93 : 147,605.84 = 61,645.20 : x - Step 2: Convert to fraction form
106,936.93/147,605.84 = 61,645.20/x - Step 3: Cross multiply
106,936.93x = 147,605.84 × 61,645.20 - Step 4: Simplify right side
106,936.93x = 9,099,191,527.97 - Step 5: Solve for x
x = 9,099,191,527.97/106,936.93 - Step 6: Final answer
x = 85,089.33
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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.