Finding the Fourth Proportional to 135,657.60, 203,437.80 and 69,075.60
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Solution
The fourth proportional to 135,657.60, 203,437.80 and 69,075.60 is: 103,588.65
Step by Step Solution
- Step 1: Write the proportion equation
135,657.60 : 203,437.80 = 69,075.60 : x - Step 2: Convert to fraction form
135,657.60/203,437.80 = 69,075.60/x - Step 3: Cross multiply
135,657.60x = 203,437.80 × 69,075.60 - Step 4: Simplify right side
135,657.60x = 14,052,588,097.68 - Step 5: Solve for x
x = 14,052,588,097.68/135,657.60 - Step 6: Final answer
x = 103,588.65
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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.