Finding the Fourth Proportional to 135,033.75, 186,346.58 and 75,417.75
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Solution
The fourth proportional to 135,033.75, 186,346.58 and 75,417.75 is: 104,076.50
Step by Step Solution
- Step 1: Write the proportion equation
135,033.75 : 186,346.58 = 75,417.75 : x - Step 2: Convert to fraction form
135,033.75/186,346.58 = 75,417.75/x - Step 3: Cross multiply
135,033.75x = 186,346.58 × 75,417.75 - Step 4: Simplify right side
135,033.75x = 14,053,839,406.71 - Step 5: Solve for x
x = 14,053,839,406.71/135,033.75 - Step 6: Final answer
x = 104,076.50
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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.