Finding the Fourth Proportional to 135,586.41, 187,089.60 and 75,157.03
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Solution
The fourth proportional to 135,586.41, 187,089.60 and 75,157.03 is: 103,705.82
Step by Step Solution
- Step 1: Write the proportion equation
135,586.41 : 187,089.60 = 75,157.03 : x - Step 2: Convert to fraction form
135,586.41/187,089.60 = 75,157.03/x - Step 3: Cross multiply
135,586.41x = 187,089.60 × 75,157.03 - Step 4: Simplify right side
135,586.41x = 14,061,098,772.83 - Step 5: Solve for x
x = 14,061,098,772.83/135,586.41 - Step 6: Final answer
x = 103,705.82
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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.