Finding the Fourth Proportional to 128,699.28, 192,934.07 and 65,484.05
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Solution
The fourth proportional to 128,699.28, 192,934.07 and 65,484.05 is: 98,167.63
Step by Step Solution
- Step 1: Write the proportion equation
128,699.28 : 192,934.07 = 65,484.05 : x - Step 2: Convert to fraction form
128,699.28/192,934.07 = 65,484.05/x - Step 3: Cross multiply
128,699.28x = 192,934.07 × 65,484.05 - Step 4: Simplify right side
128,699.28x = 12,634,103,240.06 - Step 5: Solve for x
x = 12,634,103,240.06/128,699.28 - Step 6: Final answer
x = 98,167.63
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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.