Finding the Fourth Proportional to 135,393.38, 186,848.70 and 74,964.03
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Solution
The fourth proportional to 135,393.38, 186,848.70 and 74,964.03 is: 103,453.59
Step by Step Solution
- Step 1: Write the proportion equation
135,393.38 : 186,848.70 = 74,964.03 : x - Step 2: Convert to fraction form
135,393.38/186,848.70 = 74,964.03/x - Step 3: Cross multiply
135,393.38x = 186,848.70 × 74,964.03 - Step 4: Simplify right side
135,393.38x = 14,006,931,552.26 - Step 5: Solve for x
x = 14,006,931,552.26/135,393.38 - Step 6: Final answer
x = 103,453.59
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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.