Finding the Fourth Proportional to 135,454.24, 186,924.79 and 74,199.94
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Solution
The fourth proportional to 135,454.24, 186,924.79 and 74,199.94 is: 102,394.78
Step by Step Solution
- Step 1: Write the proportion equation
135,454.24 : 186,924.79 = 74,199.94 : x - Step 2: Convert to fraction form
135,454.24/186,924.79 = 74,199.94/x - Step 3: Cross multiply
135,454.24x = 186,924.79 × 74,199.94 - Step 4: Simplify right side
135,454.24x = 13,869,807,356.40 - Step 5: Solve for x
x = 13,869,807,356.40/135,454.24 - Step 6: Final answer
x = 102,394.78
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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.