Finding the Fourth Proportional to 128,372.05, 192,558.62 and 84,277.81
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Solution
The fourth proportional to 128,372.05, 192,558.62 and 84,277.81 is: 126,417.07
Step by Step Solution
- Step 1: Write the proportion equation
128,372.05 : 192,558.62 = 84,277.81 : x - Step 2: Convert to fraction form
128,372.05/192,558.62 = 84,277.81/x - Step 3: Cross multiply
128,372.05x = 192,558.62 × 84,277.81 - Step 4: Simplify right side
128,372.05x = 16,228,418,790.22 - Step 5: Solve for x
x = 16,228,418,790.22/128,372.05 - Step 6: Final answer
x = 126,417.07
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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.