Finding the Fourth Proportional to 138,823.08, 191,575.92 and 75,160.84
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Solution
The fourth proportional to 138,823.08, 191,575.92 and 75,160.84 is: 103,722.00
Step by Step Solution
- Step 1: Write the proportion equation
138,823.08 : 191,575.92 = 75,160.84 : x - Step 2: Convert to fraction form
138,823.08/191,575.92 = 75,160.84/x - Step 3: Cross multiply
138,823.08x = 191,575.92 × 75,160.84 - Step 4: Simplify right side
138,823.08x = 14,399,007,070.97 - Step 5: Solve for x
x = 14,399,007,070.97/138,823.08 - Step 6: Final answer
x = 103,722.00
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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.