Finding the Fourth Proportional to 134,666.12, 185,841.60 and 74,236.40
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Solution
The fourth proportional to 134,666.12, 185,841.60 and 74,236.40 is: 102,447.53
Step by Step Solution
- Step 1: Write the proportion equation
134,666.12 : 185,841.60 = 74,236.40 : x - Step 2: Convert to fraction form
134,666.12/185,841.60 = 74,236.40/x - Step 3: Cross multiply
134,666.12x = 185,841.60 × 74,236.40 - Step 4: Simplify right side
134,666.12x = 13,796,211,354.24 - Step 5: Solve for x
x = 13,796,211,354.24/134,666.12 - Step 6: Final answer
x = 102,447.53
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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.