Finding the Fourth Proportional to 115,663.68, 159,634.35 and 67,907.79
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Solution
The fourth proportional to 115,663.68, 159,634.35 and 67,907.79 is: 93,723.60
Step by Step Solution
- Step 1: Write the proportion equation
115,663.68 : 159,634.35 = 67,907.79 : x - Step 2: Convert to fraction form
115,663.68/159,634.35 = 67,907.79/x - Step 3: Cross multiply
115,663.68x = 159,634.35 × 67,907.79 - Step 4: Simplify right side
115,663.68x = 10,840,415,916.59 - Step 5: Solve for x
x = 10,840,415,916.59/115,663.68 - Step 6: Final answer
x = 93,723.60
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1.5x scale
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.