Finding the Fourth Proportional to 106,818.18, 147,464.73 and 99,750.66
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Solution
The fourth proportional to 106,818.18, 147,464.73 and 99,750.66 is: 137,707.87
Step by Step Solution
- Step 1: Write the proportion equation
106,818.18 : 147,464.73 = 99,750.66 : x - Step 2: Convert to fraction form
106,818.18/147,464.73 = 99,750.66/x - Step 3: Cross multiply
106,818.18x = 147,464.73 × 99,750.66 - Step 4: Simplify right side
106,818.18x = 14,709,704,144.22 - Step 5: Solve for x
x = 14,709,704,144.22/106,818.18 - Step 6: Final answer
x = 137,707.87
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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.