Finding the Fourth Proportional to 135,308.68, 186,817.86 and 84,341.80
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Solution
The fourth proportional to 135,308.68, 186,817.86 and 84,341.80 is: 116,448.96
Step by Step Solution
- Step 1: Write the proportion equation
135,308.68 : 186,817.86 = 84,341.80 : x - Step 2: Convert to fraction form
135,308.68/186,817.86 = 84,341.80/x - Step 3: Cross multiply
135,308.68x = 186,817.86 × 84,341.80 - Step 4: Simplify right side
135,308.68x = 15,756,554,584.55 - Step 5: Solve for x
x = 15,756,554,584.55/135,308.68 - Step 6: Final answer
x = 116,448.96
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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.