Finding the Fourth Proportional to 134,921.60, 202,406.70 and 56,043.80
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Solution
The fourth proportional to 134,921.60, 202,406.70 and 56,043.80 is: 84,075.79
Step by Step Solution
- Step 1: Write the proportion equation
134,921.60 : 202,406.70 = 56,043.80 : x - Step 2: Convert to fraction form
134,921.60/202,406.70 = 56,043.80/x - Step 3: Cross multiply
134,921.60x = 202,406.70 × 56,043.80 - Step 4: Simplify right side
134,921.60x = 11,343,640,613.46 - Step 5: Solve for x
x = 11,343,640,613.46/134,921.60 - Step 6: Final answer
x = 84,075.79
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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.