Finding the Fourth Proportional to 128,649.08, 193,001.97 and 43,257.02
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Solution
The fourth proportional to 128,649.08, 193,001.97 and 43,257.02 is: 64,895.06
Step by Step Solution
- Step 1: Write the proportion equation
128,649.08 : 193,001.97 = 43,257.02 : x - Step 2: Convert to fraction form
128,649.08/193,001.97 = 43,257.02/x - Step 3: Cross multiply
128,649.08x = 193,001.97 × 43,257.02 - Step 4: Simplify right side
128,649.08x = 8,348,690,076.33 - Step 5: Solve for x
x = 8,348,690,076.33/128,649.08 - Step 6: Final answer
x = 64,895.06
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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.