Finding the Fourth Proportional to 99,376.67, 137,184.59 and 65,402.99
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Solution
The fourth proportional to 99,376.67, 137,184.59 and 65,402.99 is: 90,285.60
Step by Step Solution
- Step 1: Write the proportion equation
99,376.67 : 137,184.59 = 65,402.99 : x - Step 2: Convert to fraction form
99,376.67/137,184.59 = 65,402.99/x - Step 3: Cross multiply
99,376.67x = 137,184.59 × 65,402.99 - Step 4: Simplify right side
99,376.67x = 8,972,282,763.72 - Step 5: Solve for x
x = 8,972,282,763.72/99,376.67 - Step 6: Final answer
x = 90,285.60
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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.