Finding the Fourth Proportional to 140,652.99, 194,101.65 and 76,996.71
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Solution
The fourth proportional to 140,652.99, 194,101.65 and 76,996.71 is: 106,255.75
Step by Step Solution
- Step 1: Write the proportion equation
140,652.99 : 194,101.65 = 76,996.71 : x - Step 2: Convert to fraction form
140,652.99/194,101.65 = 76,996.71/x - Step 3: Cross multiply
140,652.99x = 194,101.65 × 76,996.71 - Step 4: Simplify right side
140,652.99x = 14,945,188,455.57 - Step 5: Solve for x
x = 14,945,188,455.57/140,652.99 - Step 6: Final answer
x = 106,255.75
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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.