Finding the Fourth Proportional to 120,637.18, 180,957.08 and 36,398.09
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Solution
The fourth proportional to 120,637.18, 180,957.08 and 36,398.09 is: 54,597.53
Step by Step Solution
- Step 1: Write the proportion equation
120,637.18 : 180,957.08 = 36,398.09 : x - Step 2: Convert to fraction form
120,637.18/180,957.08 = 36,398.09/x - Step 3: Cross multiply
120,637.18x = 180,957.08 × 36,398.09 - Step 4: Simplify right side
120,637.18x = 6,586,492,525.00 - Step 5: Solve for x
x = 6,586,492,525.00/120,637.18 - Step 6: Final answer
x = 54,597.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.