Finding the Fourth Proportional to 101,482.15, 140,045.64 and 56,163.26
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Solution
The fourth proportional to 101,482.15, 140,045.64 and 56,163.26 is: 77,505.45
Step by Step Solution
- Step 1: Write the proportion equation
101,482.15 : 140,045.64 = 56,163.26 : x - Step 2: Convert to fraction form
101,482.15/140,045.64 = 56,163.26/x - Step 3: Cross multiply
101,482.15x = 140,045.64 × 56,163.26 - Step 4: Simplify right side
101,482.15x = 7,865,419,691.19 - Step 5: Solve for x
x = 7,865,419,691.19/101,482.15 - Step 6: Final answer
x = 77,505.45
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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.