Finding the Fourth Proportional to 140,414.63, 193,772.18 and 76,752.68
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Solution
The fourth proportional to 140,414.63, 193,772.18 and 76,752.68 is: 105,918.69
Step by Step Solution
- Step 1: Write the proportion equation
140,414.63 : 193,772.18 = 76,752.68 : x - Step 2: Convert to fraction form
140,414.63/193,772.18 = 76,752.68/x - Step 3: Cross multiply
140,414.63x = 193,772.18 × 76,752.68 - Step 4: Simplify right side
140,414.63x = 14,872,533,347.46 - Step 5: Solve for x
x = 14,872,533,347.46/140,414.63 - Step 6: Final answer
x = 105,918.69
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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.