Finding the Fourth Proportional to 135,395.30, 186,847.84 and 74,146.88
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Solution
The fourth proportional to 135,395.30, 186,847.84 and 74,146.88 is: 102,323.97
Step by Step Solution
- Step 1: Write the proportion equation
135,395.30 : 186,847.84 = 74,146.88 : x - Step 2: Convert to fraction form
135,395.30/186,847.84 = 74,146.88/x - Step 3: Cross multiply
135,395.30x = 186,847.84 × 74,146.88 - Step 4: Simplify right side
135,395.30x = 13,854,184,370.74 - Step 5: Solve for x
x = 13,854,184,370.74/135,395.30 - Step 6: Final answer
x = 102,323.97
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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.