Finding the Fourth Proportional to 135,243.67, 186,632.90 and 74,817.67
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Solution
The fourth proportional to 135,243.67, 186,632.90 and 74,817.67 is: 103,246.52
Step by Step Solution
- Step 1: Write the proportion equation
135,243.67 : 186,632.90 = 74,817.67 : x - Step 2: Convert to fraction form
135,243.67/186,632.90 = 74,817.67/x - Step 3: Cross multiply
135,243.67x = 186,632.90 × 74,817.67 - Step 4: Simplify right side
135,243.67x = 13,963,438,349.25 - Step 5: Solve for x
x = 13,963,438,349.25/135,243.67 - Step 6: Final answer
x = 103,246.52
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1.5x scale
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.