Finding the Fourth Proportional to 155,548.64, 214,677.99 and 87,579.11
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Solution
The fourth proportional to 155,548.64, 214,677.99 and 87,579.11 is: 120,870.92
Step by Step Solution
- Step 1: Write the proportion equation
155,548.64 : 214,677.99 = 87,579.11 : x - Step 2: Convert to fraction form
155,548.64/214,677.99 = 87,579.11/x - Step 3: Cross multiply
155,548.64x = 214,677.99 × 87,579.11 - Step 4: Simplify right side
155,548.64x = 18,801,306,227.40 - Step 5: Solve for x
x = 18,801,306,227.40/155,548.64 - Step 6: Final answer
x = 120,870.92
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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.