Finding the Fourth Proportional to 176,745.74, 243,913.29 and 100,269.99
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Solution
The fourth proportional to 176,745.74, 243,913.29 and 100,269.99 is: 138,374.95
Step by Step Solution
- Step 1: Write the proportion equation
176,745.74 : 243,913.29 = 100,269.99 : x - Step 2: Convert to fraction form
176,745.74/243,913.29 = 100,269.99/x - Step 3: Cross multiply
176,745.74x = 243,913.29 × 100,269.99 - Step 4: Simplify right side
176,745.74x = 24,457,182,647.82 - Step 5: Solve for x
x = 24,457,182,647.82/176,745.74 - Step 6: Final answer
x = 138,374.95
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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.