Finding the Fourth Proportional to 131,784.30, 181,862.42 and 71,354.99
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Solution
The fourth proportional to 131,784.30, 181,862.42 and 71,354.99 is: 98,469.93
Step by Step Solution
- Step 1: Write the proportion equation
131,784.30 : 181,862.42 = 71,354.99 : x - Step 2: Convert to fraction form
131,784.30/181,862.42 = 71,354.99/x - Step 3: Cross multiply
131,784.30x = 181,862.42 × 71,354.99 - Step 4: Simplify right side
131,784.30x = 12,976,791,160.48 - Step 5: Solve for x
x = 12,976,791,160.48/131,784.30 - Step 6: Final answer
x = 98,469.93
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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.