Finding the Fourth Proportional to 135,968.16, 203,931.15 and 69,457.44
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Solution
The fourth proportional to 135,968.16, 203,931.15 and 69,457.44 is: 104,175.39
Step by Step Solution
- Step 1: Write the proportion equation
135,968.16 : 203,931.15 = 69,457.44 : x - Step 2: Convert to fraction form
135,968.16/203,931.15 = 69,457.44/x - Step 3: Cross multiply
135,968.16x = 203,931.15 × 69,457.44 - Step 4: Simplify right side
135,968.16x = 14,164,535,615.26 - Step 5: Solve for x
x = 14,164,535,615.26/135,968.16 - Step 6: Final answer
x = 104,175.39
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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.