Finding the Fourth Proportional to 135,059.80, 202,322.40 and 118,438.60
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Solution
The fourth proportional to 135,059.80, 202,322.40 and 118,438.60 is: 177,423.50
Step by Step Solution
- Step 1: Write the proportion equation
135,059.80 : 202,322.40 = 118,438.60 : x - Step 2: Convert to fraction form
135,059.80/202,322.40 = 118,438.60/x - Step 3: Cross multiply
135,059.80x = 202,322.40 × 118,438.60 - Step 4: Simplify right side
135,059.80x = 23,962,781,804.64 - Step 5: Solve for x
x = 23,962,781,804.64/135,059.80 - Step 6: Final answer
x = 177,423.50
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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.