Finding the Fourth Proportional to 185,639.95, 256,183.38 and 100,756.99
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Solution
The fourth proportional to 185,639.95, 256,183.38 and 100,756.99 is: 139,044.78
Step by Step Solution
- Step 1: Write the proportion equation
185,639.95 : 256,183.38 = 100,756.99 : x - Step 2: Convert to fraction form
185,639.95/256,183.38 = 100,756.99/x - Step 3: Cross multiply
185,639.95x = 256,183.38 × 100,756.99 - Step 4: Simplify right side
185,639.95x = 25,812,266,256.83 - Step 5: Solve for x
x = 25,812,266,256.83/185,639.95 - Step 6: Final answer
x = 139,044.78
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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.