Finding the Fourth Proportional to 144,163.07, 199,038.65 and 129,029.49
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Solution
The fourth proportional to 144,163.07, 199,038.65 and 129,029.49 is: 178,144.48
Step by Step Solution
- Step 1: Write the proportion equation
144,163.07 : 199,038.65 = 129,029.49 : x - Step 2: Convert to fraction form
144,163.07/199,038.65 = 129,029.49/x - Step 3: Cross multiply
144,163.07x = 199,038.65 × 129,029.49 - Step 4: Simplify right side
144,163.07x = 25,681,854,854.64 - Step 5: Solve for x
x = 25,681,854,854.64/144,163.07 - Step 6: Final answer
x = 178,144.48
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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.