Finding the Fourth Proportional to 135,334.25, 186,758.99 and 74,903.60
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Solution
The fourth proportional to 135,334.25, 186,758.99 and 74,903.60 is: 103,365.72
Step by Step Solution
- Step 1: Write the proportion equation
135,334.25 : 186,758.99 = 74,903.60 : x - Step 2: Convert to fraction form
135,334.25/186,758.99 = 74,903.60/x - Step 3: Cross multiply
135,334.25x = 186,758.99 × 74,903.60 - Step 4: Simplify right side
135,334.25x = 13,988,921,337.52 - Step 5: Solve for x
x = 13,988,921,337.52/135,334.25 - Step 6: Final answer
x = 103,365.72
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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.