Finding the Fourth Proportional to 103,156.40, 154,717.99 and 28,259.03
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Solution
The fourth proportional to 103,156.40, 154,717.99 and 28,259.03 is: 42,383.99
Step by Step Solution
- Step 1: Write the proportion equation
103,156.40 : 154,717.99 = 28,259.03 : x - Step 2: Convert to fraction form
103,156.40/154,717.99 = 28,259.03/x - Step 3: Cross multiply
103,156.40x = 154,717.99 × 28,259.03 - Step 4: Simplify right side
103,156.40x = 4,372,180,320.95 - Step 5: Solve for x
x = 4,372,180,320.95/103,156.40 - Step 6: Final answer
x = 42,383.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.