Finding the Fourth Proportional to 163,803.96, 225,992.99 and 99,293.94
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Solution
The fourth proportional to 163,803.96, 225,992.99 and 99,293.94 is: 136,991.40
Step by Step Solution
- Step 1: Write the proportion equation
163,803.96 : 225,992.99 = 99,293.94 : x - Step 2: Convert to fraction form
163,803.96/225,992.99 = 99,293.94/x - Step 3: Cross multiply
163,803.96x = 225,992.99 × 99,293.94 - Step 4: Simplify right side
163,803.96x = 22,439,733,893.01 - Step 5: Solve for x
x = 22,439,733,893.01/163,803.96 - Step 6: Final answer
x = 136,991.40
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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.