Finding the Fourth Proportional to 135,707.20, 187,277.06 and 75,281.81
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Solution
The fourth proportional to 135,707.20, 187,277.06 and 75,281.81 is: 103,889.52
Step by Step Solution
- Step 1: Write the proportion equation
135,707.20 : 187,277.06 = 75,281.81 : x - Step 2: Convert to fraction form
135,707.20/187,277.06 = 75,281.81/x - Step 3: Cross multiply
135,707.20x = 187,277.06 × 75,281.81 - Step 4: Simplify right side
135,707.20x = 14,098,555,300.10 - Step 5: Solve for x
x = 14,098,555,300.10/135,707.20 - Step 6: Final answer
x = 103,889.52
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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.