Finding the Fourth Proportional to 135,967.79, 203,930.59 and 69,457.07
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Solution
The fourth proportional to 135,967.79, 203,930.59 and 69,457.07 is: 104,174.82
Step by Step Solution
- Step 1: Write the proportion equation
135,967.79 : 203,930.59 = 69,457.07 : x - Step 2: Convert to fraction form
135,967.79/203,930.59 = 69,457.07/x - Step 3: Cross multiply
135,967.79x = 203,930.59 × 69,457.07 - Step 4: Simplify right side
135,967.79x = 14,164,420,071.48 - Step 5: Solve for x
x = 14,164,420,071.48/135,967.79 - Step 6: Final answer
x = 104,174.82
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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.