Finding the Fourth Proportional to 135,497.29, 186,986.13 and 75,071.70
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Solution
The fourth proportional to 135,497.29, 186,986.13 and 75,071.70 is: 103,598.87
Step by Step Solution
- Step 1: Write the proportion equation
135,497.29 : 186,986.13 = 75,071.70 : x - Step 2: Convert to fraction form
135,497.29/186,986.13 = 75,071.70/x - Step 3: Cross multiply
135,497.29x = 186,986.13 × 75,071.70 - Step 4: Simplify right side
135,497.29x = 14,037,366,188.06 - Step 5: Solve for x
x = 14,037,366,188.06/135,497.29 - Step 6: Final answer
x = 103,598.87
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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.