Finding the Fourth Proportional to 106,891.95, 147,487.48 and 63,864.99
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Solution
The fourth proportional to 106,891.95, 147,487.48 and 63,864.99 is: 88,119.69
Step by Step Solution
- Step 1: Write the proportion equation
106,891.95 : 147,487.48 = 63,864.99 : x - Step 2: Convert to fraction form
106,891.95/147,487.48 = 63,864.99/x - Step 3: Cross multiply
106,891.95x = 147,487.48 × 63,864.99 - Step 4: Simplify right side
106,891.95x = 9,419,285,697.89 - Step 5: Solve for x
x = 9,419,285,697.89/106,891.95 - Step 6: Final answer
x = 88,119.69
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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.