Finding the Fourth Proportional to 185,812.89, 256,423.14 and 100,929.99
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Solution
The fourth proportional to 185,812.89, 256,423.14 and 100,929.99 is: 139,284.12
Step by Step Solution
- Step 1: Write the proportion equation
185,812.89 : 256,423.14 = 100,929.99 : x - Step 2: Convert to fraction form
185,812.89/256,423.14 = 100,929.99/x - Step 3: Cross multiply
185,812.89x = 256,423.14 × 100,929.99 - Step 4: Simplify right side
185,812.89x = 25,880,784,955.97 - Step 5: Solve for x
x = 25,880,784,955.97/185,812.89 - Step 6: Final answer
x = 139,284.12
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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.