Finding the Fourth Proportional to 135,289.96, 186,684.14 and 74,852.64
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Solution
The fourth proportional to 135,289.96, 186,684.14 and 74,852.64 is: 103,287.79
Step by Step Solution
- Step 1: Write the proportion equation
135,289.96 : 186,684.14 = 74,852.64 : x - Step 2: Convert to fraction form
135,289.96/186,684.14 = 74,852.64/x - Step 3: Cross multiply
135,289.96x = 186,684.14 × 74,852.64 - Step 4: Simplify right side
135,289.96x = 13,973,800,725.13 - Step 5: Solve for x
x = 13,973,800,725.13/135,289.96 - Step 6: Final answer
x = 103,287.79
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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.