Finding the Fourth Proportional to 147,257.28, 203,235.12 and 86,844.96
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Solution
The fourth proportional to 147,257.28, 203,235.12 and 86,844.96 is: 119,857.88
Step by Step Solution
- Step 1: Write the proportion equation
147,257.28 : 203,235.12 = 86,844.96 : x - Step 2: Convert to fraction form
147,257.28/203,235.12 = 86,844.96/x - Step 3: Cross multiply
147,257.28x = 203,235.12 × 86,844.96 - Step 4: Simplify right side
147,257.28x = 17,649,945,867.00 - Step 5: Solve for x
x = 17,649,945,867.00/147,257.28 - Step 6: Final answer
x = 119,857.88
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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.