Finding the Fourth Proportional to 107,727.18, 148,688.19 and 69,935.82
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Solution
The fourth proportional to 107,727.18, 148,688.19 and 69,935.82 is: 96,527.45
Step by Step Solution
- Step 1: Write the proportion equation
107,727.18 : 148,688.19 = 69,935.82 : x - Step 2: Convert to fraction form
107,727.18/148,688.19 = 69,935.82/x - Step 3: Cross multiply
107,727.18x = 148,688.19 × 69,935.82 - Step 4: Simplify right side
107,727.18x = 10,398,630,491.97 - Step 5: Solve for x
x = 10,398,630,491.97/107,727.18 - Step 6: Final answer
x = 96,527.45
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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.