Finding the Fourth Proportional to 155,778.38, 214,833.02 and 102,043.80
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Solution
The fourth proportional to 155,778.38, 214,833.02 and 102,043.80 is: 140,727.99
Step by Step Solution
- Step 1: Write the proportion equation
155,778.38 : 214,833.02 = 102,043.80 : x - Step 2: Convert to fraction form
155,778.38/214,833.02 = 102,043.80/x - Step 3: Cross multiply
155,778.38x = 214,833.02 × 102,043.80 - Step 4: Simplify right side
155,778.38x = 21,922,377,726.28 - Step 5: Solve for x
x = 21,922,377,726.28/155,778.38 - Step 6: Final answer
x = 140,727.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.