Finding the Fourth Proportional to 128,823.20, 193,234.80 and 114,048.80
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Solution
The fourth proportional to 128,823.20, 193,234.80 and 114,048.80 is: 171,073.20
Step by Step Solution
- Step 1: Write the proportion equation
128,823.20 : 193,234.80 = 114,048.80 : x - Step 2: Convert to fraction form
128,823.20/193,234.80 = 114,048.80/x - Step 3: Cross multiply
128,823.20x = 193,234.80 × 114,048.80 - Step 4: Simplify right side
128,823.20x = 22,038,197,058.24 - Step 5: Solve for x
x = 22,038,197,058.24/128,823.20 - Step 6: Final answer
x = 171,073.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.