Finding the Fourth Proportional to 116,542.11, 160,690.55 and 79,766.07
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Solution
The fourth proportional to 116,542.11, 160,690.55 and 79,766.07 is: 109,983.02
Step by Step Solution
- Step 1: Write the proportion equation
116,542.11 : 160,690.55 = 79,766.07 : x - Step 2: Convert to fraction form
116,542.11/160,690.55 = 79,766.07/x - Step 3: Cross multiply
116,542.11x = 160,690.55 × 79,766.07 - Step 4: Simplify right side
116,542.11x = 12,817,653,106.90 - Step 5: Solve for x
x = 12,817,653,106.90/116,542.11 - Step 6: Final answer
x = 109,983.02
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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.