Finding the Fourth Proportional to 135,865.28, 203,822.40 and 55,889.12
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Solution
The fourth proportional to 135,865.28, 203,822.40 and 55,889.12 is: 83,843.75
Step by Step Solution
- Step 1: Write the proportion equation
135,865.28 : 203,822.40 = 55,889.12 : x - Step 2: Convert to fraction form
135,865.28/203,822.40 = 55,889.12/x - Step 3: Cross multiply
135,865.28x = 203,822.40 × 55,889.12 - Step 4: Simplify right side
135,865.28x = 11,391,454,572.29 - Step 5: Solve for x
x = 11,391,454,572.29/135,865.28 - Step 6: Final answer
x = 83,843.75
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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.