Finding the Fourth Proportional to 103,688.21, 155,552.66 and 47,529.70
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Solution
The fourth proportional to 103,688.21, 155,552.66 and 47,529.70 is: 71,303.88
Step by Step Solution
- Step 1: Write the proportion equation
103,688.21 : 155,552.66 = 47,529.70 : x - Step 2: Convert to fraction form
103,688.21/155,552.66 = 47,529.70/x - Step 3: Cross multiply
103,688.21x = 155,552.66 × 47,529.70 - Step 4: Simplify right side
103,688.21x = 7,393,371,264.00 - Step 5: Solve for x
x = 7,393,371,264.00/103,688.21 - Step 6: Final answer
x = 71,303.88
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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.