Finding the Fourth Proportional to 135,802.90, 187,402.44 and 75,376.09
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Solution
The fourth proportional to 135,802.90, 187,402.44 and 75,376.09 is: 104,015.92
Step by Step Solution
- Step 1: Write the proportion equation
135,802.90 : 187,402.44 = 75,376.09 : x - Step 2: Convert to fraction form
135,802.90/187,402.44 = 75,376.09/x - Step 3: Cross multiply
135,802.90x = 187,402.44 × 75,376.09 - Step 4: Simplify right side
135,802.90x = 14,125,663,183.66 - Step 5: Solve for x
x = 14,125,663,183.66/135,802.90 - Step 6: Final answer
x = 104,015.92
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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.