Finding the Fourth Proportional to 143,614.95, 198,184.77 and 79,952.75
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Solution
The fourth proportional to 143,614.95, 198,184.77 and 79,952.75 is: 110,332.65
Step by Step Solution
- Step 1: Write the proportion equation
143,614.95 : 198,184.77 = 79,952.75 : x - Step 2: Convert to fraction form
143,614.95/198,184.77 = 79,952.75/x - Step 3: Cross multiply
143,614.95x = 198,184.77 × 79,952.75 - Step 4: Simplify right side
143,614.95x = 15,845,417,369.62 - Step 5: Solve for x
x = 15,845,417,369.62/143,614.95 - Step 6: Final answer
x = 110,332.65
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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.