Finding the Fourth Proportional to 143,202.24, 197,619.14 and 79,545.96
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Solution
The fourth proportional to 143,202.24, 197,619.14 and 79,545.96 is: 109,773.45
Step by Step Solution
- Step 1: Write the proportion equation
143,202.24 : 197,619.14 = 79,545.96 : x - Step 2: Convert to fraction form
143,202.24/197,619.14 = 79,545.96/x - Step 3: Cross multiply
143,202.24x = 197,619.14 × 79,545.96 - Step 4: Simplify right side
143,202.24x = 15,719,804,205.67 - Step 5: Solve for x
x = 15,719,804,205.67/143,202.24 - Step 6: Final answer
x = 109,773.45
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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.