Finding the Fourth Proportional to 135,833.36, 187,416.64 and 81,394.28
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Solution
The fourth proportional to 135,833.36, 187,416.64 and 81,394.28 is: 112,304.09
Step by Step Solution
- Step 1: Write the proportion equation
135,833.36 : 187,416.64 = 81,394.28 : x - Step 2: Convert to fraction form
135,833.36/187,416.64 = 81,394.28/x - Step 3: Cross multiply
135,833.36x = 187,416.64 × 81,394.28 - Step 4: Simplify right side
135,833.36x = 15,254,642,472.82 - Step 5: Solve for x
x = 15,254,642,472.82/135,833.36 - Step 6: Final answer
x = 112,304.09
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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.