Finding the Fourth Proportional to 147,239.18, 202,947.44 and 104,163.02
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Solution
The fourth proportional to 147,239.18, 202,947.44 and 104,163.02 is: 143,573.32
Step by Step Solution
- Step 1: Write the proportion equation
147,239.18 : 202,947.44 = 104,163.02 : x - Step 2: Convert to fraction form
147,239.18/202,947.44 = 104,163.02/x - Step 3: Cross multiply
147,239.18x = 202,947.44 × 104,163.02 - Step 4: Simplify right side
147,239.18x = 21,139,618,251.67 - Step 5: Solve for x
x = 21,139,618,251.67/147,239.18 - Step 6: Final answer
x = 143,573.32
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1.5x scale
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.