Finding the Fourth Proportional to 135,890.24, 203,892.95 and 72,693.81
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Solution
The fourth proportional to 135,890.24, 203,892.95 and 72,693.81 is: 109,071.52
Step by Step Solution
- Step 1: Write the proportion equation
135,890.24 : 203,892.95 = 72,693.81 : x - Step 2: Convert to fraction form
135,890.24/203,892.95 = 72,693.81/x - Step 3: Cross multiply
135,890.24x = 203,892.95 × 72,693.81 - Step 4: Simplify right side
135,890.24x = 14,821,755,004.17 - Step 5: Solve for x
x = 14,821,755,004.17/135,890.24 - Step 6: Final answer
x = 109,071.52
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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.