Finding the Fourth Proportional to 147,515.10, 221,344.65 and 68,588.70
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Solution
The fourth proportional to 147,515.10, 221,344.65 and 68,588.70 is: 102,916.53
Step by Step Solution
- Step 1: Write the proportion equation
147,515.10 : 221,344.65 = 68,588.70 : x - Step 2: Convert to fraction form
147,515.10/221,344.65 = 68,588.70/x - Step 3: Cross multiply
147,515.10x = 221,344.65 × 68,588.70 - Step 4: Simplify right side
147,515.10x = 15,181,741,795.46 - Step 5: Solve for x
x = 15,181,741,795.46/147,515.10 - Step 6: Final answer
x = 102,916.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.