Finding the Fourth Proportional to 108,304.24, 149,486.92 and 86,709.68
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Solution
The fourth proportional to 108,304.24, 149,486.92 and 86,709.68 is: 119,681.03
Step by Step Solution
- Step 1: Write the proportion equation
108,304.24 : 149,486.92 = 86,709.68 : x - Step 2: Convert to fraction form
108,304.24/149,486.92 = 86,709.68/x - Step 3: Cross multiply
108,304.24x = 149,486.92 × 86,709.68 - Step 4: Simplify right side
108,304.24x = 12,961,962,997.39 - Step 5: Solve for x
x = 12,961,962,997.39/108,304.24 - Step 6: Final answer
x = 119,681.03
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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.