Finding the Fourth Proportional to 106,768.32, 147,333.26 and 61,438.99
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Solution
The fourth proportional to 106,768.32, 147,333.26 and 61,438.99 is: 84,781.77
Step by Step Solution
- Step 1: Write the proportion equation
106,768.32 : 147,333.26 = 61,438.99 : x - Step 2: Convert to fraction form
106,768.32/147,333.26 = 61,438.99/x - Step 3: Cross multiply
106,768.32x = 147,333.26 × 61,438.99 - Step 4: Simplify right side
106,768.32x = 9,052,006,687.81 - Step 5: Solve for x
x = 9,052,006,687.81/106,768.32 - Step 6: Final answer
x = 84,781.77
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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.