Finding the Fourth Proportional to 134,863.08, 186,005.84 and 86,469.63
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Solution
The fourth proportional to 134,863.08, 186,005.84 and 86,469.63 is: 119,260.63
Step by Step Solution
- Step 1: Write the proportion equation
134,863.08 : 186,005.84 = 86,469.63 : x - Step 2: Convert to fraction form
134,863.08/186,005.84 = 86,469.63/x - Step 3: Cross multiply
134,863.08x = 186,005.84 × 86,469.63 - Step 4: Simplify right side
134,863.08x = 16,083,855,730.29 - Step 5: Solve for x
x = 16,083,855,730.29/134,863.08 - Step 6: Final answer
x = 119,260.63
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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.