Finding the Fourth Proportional to 140,124.78, 193,372.68 and 76,463.94
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Solution
The fourth proportional to 140,124.78, 193,372.68 and 76,463.94 is: 105,520.50
Step by Step Solution
- Step 1: Write the proportion equation
140,124.78 : 193,372.68 = 76,463.94 : x - Step 2: Convert to fraction form
140,124.78/193,372.68 = 76,463.94/x - Step 3: Cross multiply
140,124.78x = 193,372.68 × 76,463.94 - Step 4: Simplify right side
140,124.78x = 14,786,037,001.16 - Step 5: Solve for x
x = 14,786,037,001.16/140,124.78 - Step 6: Final answer
x = 105,520.50
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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.