Finding the Fourth Proportional to 134,718.36, 185,907.08 and 74,291.55
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Solution
The fourth proportional to 134,718.36, 185,907.08 and 74,291.55 is: 102,519.99
Step by Step Solution
- Step 1: Write the proportion equation
134,718.36 : 185,907.08 = 74,291.55 : x - Step 2: Convert to fraction form
134,718.36/185,907.08 = 74,291.55/x - Step 3: Cross multiply
134,718.36x = 185,907.08 × 74,291.55 - Step 4: Simplify right side
134,718.36x = 13,811,324,757.72 - Step 5: Solve for x
x = 13,811,324,757.72/134,718.36 - Step 6: Final answer
x = 102,519.99
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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.