Finding the Fourth Proportional to 139,392.96, 209,057.91 and 64,471.99
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Solution
The fourth proportional to 139,392.96, 209,057.91 and 64,471.99 is: 96,693.40
Step by Step Solution
- Step 1: Write the proportion equation
139,392.96 : 209,057.91 = 64,471.99 : x - Step 2: Convert to fraction form
139,392.96/209,057.91 = 64,471.99/x - Step 3: Cross multiply
139,392.96x = 209,057.91 × 64,471.99 - Step 4: Simplify right side
139,392.96x = 13,478,379,482.94 - Step 5: Solve for x
x = 13,478,379,482.94/139,392.96 - Step 6: Final answer
x = 96,693.40
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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.