Finding the Fourth Proportional to 102,883.84, 154,053.36 and 84,143.68
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Solution
The fourth proportional to 102,883.84, 154,053.36 and 84,143.68 is: 125,992.74
Step by Step Solution
- Step 1: Write the proportion equation
102,883.84 : 154,053.36 = 84,143.68 : x - Step 2: Convert to fraction form
102,883.84/154,053.36 = 84,143.68/x - Step 3: Cross multiply
102,883.84x = 154,053.36 × 84,143.68 - Step 4: Simplify right side
102,883.84x = 12,962,616,626.76 - Step 5: Solve for x
x = 12,962,616,626.76/102,883.84 - Step 6: Final answer
x = 125,992.74
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.