Finding the Fourth Proportional to 135,802.08, 187,406.94 and 75,372.75
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Solution
The fourth proportional to 135,802.08, 187,406.94 and 75,372.75 is: 104,014.43
Step by Step Solution
- Step 1: Write the proportion equation
135,802.08 : 187,406.94 = 75,372.75 : x - Step 2: Convert to fraction form
135,802.08/187,406.94 = 75,372.75/x - Step 3: Cross multiply
135,802.08x = 187,406.94 × 75,372.75 - Step 4: Simplify right side
135,802.08x = 14,125,376,436.89 - Step 5: Solve for x
x = 14,125,376,436.89/135,802.08 - Step 6: Final answer
x = 104,014.43
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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.