Finding the Fourth Proportional to 135,432.81, 186,889.28 and 75,000.06
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Solution
The fourth proportional to 135,432.81, 186,889.28 and 75,000.06 is: 103,495.65
Step by Step Solution
- Step 1: Write the proportion equation
135,432.81 : 186,889.28 = 75,000.06 : x - Step 2: Convert to fraction form
135,432.81/186,889.28 = 75,000.06/x - Step 3: Cross multiply
135,432.81x = 186,889.28 × 75,000.06 - Step 4: Simplify right side
135,432.81x = 14,016,706,838.36 - Step 5: Solve for x
x = 14,016,706,838.36/135,432.81 - Step 6: Final answer
x = 103,495.65
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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.