Finding the Fourth Proportional to 128,377.00, 192,565.35 and 49,435.87
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Solution
The fourth proportional to 128,377.00, 192,565.35 and 49,435.87 is: 74,153.75
Step by Step Solution
- Step 1: Write the proportion equation
128,377.00 : 192,565.35 = 49,435.87 : x - Step 2: Convert to fraction form
128,377.00/192,565.35 = 49,435.87/x - Step 3: Cross multiply
128,377.00x = 192,565.35 × 49,435.87 - Step 4: Simplify right side
128,377.00x = 9,519,635,488.75 - Step 5: Solve for x
x = 9,519,635,488.75/128,377.00 - Step 6: Final answer
x = 74,153.75
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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.