Finding the Fourth Proportional to 135,177.45, 186,533.04 and 74,747.80
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Solution
The fourth proportional to 135,177.45, 186,533.04 and 74,747.80 is: 103,145.42
Step by Step Solution
- Step 1: Write the proportion equation
135,177.45 : 186,533.04 = 74,747.80 : x - Step 2: Convert to fraction form
135,177.45/186,533.04 = 74,747.80/x - Step 3: Cross multiply
135,177.45x = 186,533.04 × 74,747.80 - Step 4: Simplify right side
135,177.45x = 13,942,934,367.31 - Step 5: Solve for x
x = 13,942,934,367.31/135,177.45 - Step 6: Final answer
x = 103,145.42
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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.