Finding the Fourth Proportional to 135,859.43, 187,491.88 and 75,430.08
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Solution
The fourth proportional to 135,859.43, 187,491.88 and 75,430.08 is: 104,096.77
Step by Step Solution
- Step 1: Write the proportion equation
135,859.43 : 187,491.88 = 75,430.08 : x - Step 2: Convert to fraction form
135,859.43/187,491.88 = 75,430.08/x - Step 3: Cross multiply
135,859.43x = 187,491.88 × 75,430.08 - Step 4: Simplify right side
135,859.43x = 14,142,527,602.04 - Step 5: Solve for x
x = 14,142,527,602.04/135,859.43 - Step 6: Final answer
x = 104,096.77
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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.