Finding the Fourth Proportional to 102,226.60, 141,072.68 and 56,903.60
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Solution
The fourth proportional to 102,226.60, 141,072.68 and 56,903.60 is: 78,526.95
Step by Step Solution
- Step 1: Write the proportion equation
102,226.60 : 141,072.68 = 56,903.60 : x - Step 2: Convert to fraction form
102,226.60/141,072.68 = 56,903.60/x - Step 3: Cross multiply
102,226.60x = 141,072.68 × 56,903.60 - Step 4: Simplify right side
102,226.60x = 8,027,543,353.65 - Step 5: Solve for x
x = 8,027,543,353.65/102,226.60 - Step 6: Final answer
x = 78,526.95
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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.