Finding the Fourth Proportional to 106,299.27, 159,449.09 and 99,803.88
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Solution
The fourth proportional to 106,299.27, 159,449.09 and 99,803.88 is: 149,705.99
Step by Step Solution
- Step 1: Write the proportion equation
106,299.27 : 159,449.09 = 99,803.88 : x - Step 2: Convert to fraction form
106,299.27/159,449.09 = 99,803.88/x - Step 3: Cross multiply
106,299.27x = 159,449.09 × 99,803.88 - Step 4: Simplify right side
106,299.27x = 15,913,637,345.45 - Step 5: Solve for x
x = 15,913,637,345.45/106,299.27 - Step 6: Final answer
x = 149,705.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.