Finding the Fourth Proportional to 135,634.80, 187,246.56 and 105,352.32
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Solution
The fourth proportional to 135,634.80, 187,246.56 and 105,352.32 is: 145,440.99
Step by Step Solution
- Step 1: Write the proportion equation
135,634.80 : 187,246.56 = 105,352.32 : x - Step 2: Convert to fraction form
135,634.80/187,246.56 = 105,352.32/x - Step 3: Cross multiply
135,634.80x = 187,246.56 × 105,352.32 - Step 4: Simplify right side
135,634.80x = 19,726,859,508.02 - Step 5: Solve for x
x = 19,726,859,508.02/135,634.80 - Step 6: Final answer
x = 145,440.99
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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.