Finding the Fourth Proportional to 135,800.90, 187,399.68 and 75,374.09
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Solution
The fourth proportional to 135,800.90, 187,399.68 and 75,374.09 is: 104,013.15
Step by Step Solution
- Step 1: Write the proportion equation
135,800.90 : 187,399.68 = 75,374.09 : x - Step 2: Convert to fraction form
135,800.90/187,399.68 = 75,374.09/x - Step 3: Cross multiply
135,800.90x = 187,399.68 × 75,374.09 - Step 4: Simplify right side
135,800.90x = 14,125,079,409.29 - Step 5: Solve for x
x = 14,125,079,409.29/135,800.90 - Step 6: Final answer
x = 104,013.15
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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.