Finding the Fourth Proportional to 134,812.78, 202,153.74 and 71,663.20
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Solution
The fourth proportional to 134,812.78, 202,153.74 and 71,663.20 is: 107,460.02
Step by Step Solution
- Step 1: Write the proportion equation
134,812.78 : 202,153.74 = 71,663.20 : x - Step 2: Convert to fraction form
134,812.78/202,153.74 = 71,663.20/x - Step 3: Cross multiply
134,812.78x = 202,153.74 × 71,663.20 - Step 4: Simplify right side
134,812.78x = 14,486,983,900.37 - Step 5: Solve for x
x = 14,486,983,900.37/134,812.78 - Step 6: Final answer
x = 107,460.02
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1.5x scale
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.