Finding the Fourth Proportional to 141,078.24, 194,690.16 and 77,415.12
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Solution
The fourth proportional to 141,078.24, 194,690.16 and 77,415.12 is: 106,834.07
Step by Step Solution
- Step 1: Write the proportion equation
141,078.24 : 194,690.16 = 77,415.12 : x - Step 2: Convert to fraction form
141,078.24/194,690.16 = 77,415.12/x - Step 3: Cross multiply
141,078.24x = 194,690.16 × 77,415.12 - Step 4: Simplify right side
141,078.24x = 15,071,962,099.22 - Step 5: Solve for x
x = 15,071,962,099.22/141,078.24 - Step 6: Final answer
x = 106,834.07
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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.