Finding the Fourth Proportional to 106,767.18, 146,913.75 and 103,520.70
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Solution
The fourth proportional to 106,767.18, 146,913.75 and 103,520.70 is: 142,446.53
Step by Step Solution
- Step 1: Write the proportion equation
106,767.18 : 146,913.75 = 103,520.70 : x - Step 2: Convert to fraction form
106,767.18/146,913.75 = 103,520.70/x - Step 3: Cross multiply
106,767.18x = 146,913.75 × 103,520.70 - Step 4: Simplify right side
106,767.18x = 15,208,614,239.63 - Step 5: Solve for x
x = 15,208,614,239.63/106,767.18 - Step 6: Final answer
x = 142,446.53
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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.