Finding the Fourth Proportional to 135,341.04, 186,769.08 and 74,911.80
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Solution
The fourth proportional to 135,341.04, 186,769.08 and 74,911.80 is: 103,377.42
Step by Step Solution
- Step 1: Write the proportion equation
135,341.04 : 186,769.08 = 74,911.80 : x - Step 2: Convert to fraction form
135,341.04/186,769.08 = 74,911.80/x - Step 3: Cross multiply
135,341.04x = 186,769.08 × 74,911.80 - Step 4: Simplify right side
135,341.04x = 13,991,207,967.14 - Step 5: Solve for x
x = 13,991,207,967.14/135,341.04 - Step 6: Final answer
x = 103,377.42
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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.