Finding the Fourth Proportional to 128,857.17, 193,239.43 and 44,594.46
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Solution
The fourth proportional to 128,857.17, 193,239.43 and 44,594.46 is: 66,875.66
Step by Step Solution
- Step 1: Write the proportion equation
128,857.17 : 193,239.43 = 44,594.46 : x - Step 2: Convert to fraction form
128,857.17/193,239.43 = 44,594.46/x - Step 3: Cross multiply
128,857.17x = 193,239.43 × 44,594.46 - Step 4: Simplify right side
128,857.17x = 8,617,408,031.56 - Step 5: Solve for x
x = 8,617,408,031.56/128,857.17 - Step 6: Final answer
x = 66,875.66
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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.