Finding the Fourth Proportional to 153,175.92, 211,380.86 and 86,107.92
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Solution
The fourth proportional to 153,175.92, 211,380.86 and 86,107.92 is: 118,827.86
Step by Step Solution
- Step 1: Write the proportion equation
153,175.92 : 211,380.86 = 86,107.92 : x - Step 2: Convert to fraction form
153,175.92/211,380.86 = 86,107.92/x - Step 3: Cross multiply
153,175.92x = 211,380.86 × 86,107.92 - Step 4: Simplify right side
153,175.92x = 18,201,566,182.41 - Step 5: Solve for x
x = 18,201,566,182.41/153,175.92 - Step 6: Final answer
x = 118,827.86
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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.