Finding the Fourth Proportional to 147,338.66, 203,353.94 and 86,905.71
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Solution
The fourth proportional to 147,338.66, 203,353.94 and 86,905.71 is: 119,945.56
Step by Step Solution
- Step 1: Write the proportion equation
147,338.66 : 203,353.94 = 86,905.71 : x - Step 2: Convert to fraction form
147,338.66/203,353.94 = 86,905.71/x - Step 3: Cross multiply
147,338.66x = 203,353.94 × 86,905.71 - Step 4: Simplify right side
147,338.66x = 17,672,618,754.26 - Step 5: Solve for x
x = 17,672,618,754.26/147,338.66 - Step 6: Final answer
x = 119,945.56
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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.