Finding the Fourth Proportional to 135,125.49, 186,470.43 and 74,698.68
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Solution
The fourth proportional to 135,125.49, 186,470.43 and 74,698.68 is: 103,082.66
Step by Step Solution
- Step 1: Write the proportion equation
135,125.49 : 186,470.43 = 74,698.68 : x - Step 2: Convert to fraction form
135,125.49/186,470.43 = 74,698.68/x - Step 3: Cross multiply
135,125.49x = 186,470.43 × 74,698.68 - Step 4: Simplify right side
135,125.49x = 13,929,094,980.03 - Step 5: Solve for x
x = 13,929,094,980.03/135,125.49 - Step 6: Final answer
x = 103,082.66
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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.