Finding the Fourth Proportional to 149,351.73, 206,110.40 and 81,374.10
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Solution
The fourth proportional to 149,351.73, 206,110.40 and 81,374.10 is: 112,298.99
Step by Step Solution
- Step 1: Write the proportion equation
149,351.73 : 206,110.40 = 81,374.10 : x - Step 2: Convert to fraction form
149,351.73/206,110.40 = 81,374.10/x - Step 3: Cross multiply
149,351.73x = 206,110.40 × 81,374.10 - Step 4: Simplify right side
149,351.73x = 16,772,048,300.64 - Step 5: Solve for x
x = 16,772,048,300.64/149,351.73 - Step 6: Final answer
x = 112,298.99
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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.