Finding the Fourth Proportional to 134,946.11, 186,224.42 and 74,515.45
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Solution
The fourth proportional to 134,946.11, 186,224.42 and 74,515.45 is: 102,830.65
Step by Step Solution
- Step 1: Write the proportion equation
134,946.11 : 186,224.42 = 74,515.45 : x - Step 2: Convert to fraction form
134,946.11/186,224.42 = 74,515.45/x - Step 3: Cross multiply
134,946.11x = 186,224.42 × 74,515.45 - Step 4: Simplify right side
134,946.11x = 13,876,596,457.29 - Step 5: Solve for x
x = 13,876,596,457.29/134,946.11 - Step 6: Final answer
x = 102,830.65
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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.