Finding the Fourth Proportional to 135,346.32, 186,773.14 and 74,917.08
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Solution
The fourth proportional to 135,346.32, 186,773.14 and 74,917.08 is: 103,382.92
Step by Step Solution
- Step 1: Write the proportion equation
135,346.32 : 186,773.14 = 74,917.08 : x - Step 2: Convert to fraction form
135,346.32/186,773.14 = 74,917.08/x - Step 3: Cross multiply
135,346.32x = 186,773.14 × 74,917.08 - Step 4: Simplify right side
135,346.32x = 13,992,498,271.23 - Step 5: Solve for x
x = 13,992,498,271.23/135,346.32 - Step 6: Final answer
x = 103,382.92
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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.