Finding the Fourth Proportional to 103,696.10, 155,155.35 and 68,704.10
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Solution
The fourth proportional to 103,696.10, 155,155.35 and 68,704.10 is: 102,798.55
Step by Step Solution
- Step 1: Write the proportion equation
103,696.10 : 155,155.35 = 68,704.10 : x - Step 2: Convert to fraction form
103,696.10/155,155.35 = 68,704.10/x - Step 3: Cross multiply
103,696.10x = 155,155.35 × 68,704.10 - Step 4: Simplify right side
103,696.10x = 10,659,808,681.94 - Step 5: Solve for x
x = 10,659,808,681.94/103,696.10 - Step 6: Final answer
x = 102,798.55
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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.