Finding the Fourth Proportional to 134,794.90, 186,015.20 and 74,368.09
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Solution
The fourth proportional to 134,794.90, 186,015.20 and 74,368.09 is: 102,626.99
Step by Step Solution
- Step 1: Write the proportion equation
134,794.90 : 186,015.20 = 74,368.09 : x - Step 2: Convert to fraction form
134,794.90/186,015.20 = 74,368.09/x - Step 3: Cross multiply
134,794.90x = 186,015.20 × 74,368.09 - Step 4: Simplify right side
134,794.90x = 13,833,595,134.97 - Step 5: Solve for x
x = 13,833,595,134.97/134,794.90 - Step 6: Final answer
x = 102,626.99
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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.