Finding the Fourth Proportional to 147,660.60, 203,700.78 and 107,311.80
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Solution
The fourth proportional to 147,660.60, 203,700.78 and 107,311.80 is: 148,038.80
Step by Step Solution
- Step 1: Write the proportion equation
147,660.60 : 203,700.78 = 107,311.80 : x - Step 2: Convert to fraction form
147,660.60/203,700.78 = 107,311.80/x - Step 3: Cross multiply
147,660.60x = 203,700.78 × 107,311.80 - Step 4: Simplify right side
147,660.60x = 21,859,497,363.20 - Step 5: Solve for x
x = 21,859,497,363.20/147,660.60 - Step 6: Final answer
x = 148,038.80
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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.