Finding the Fourth Proportional to 128,372.23, 192,652.98 and 60,904.54
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Solution
The fourth proportional to 128,372.23, 192,652.98 and 60,904.54 is: 91,401.71
Step by Step Solution
- Step 1: Write the proportion equation
128,372.23 : 192,652.98 = 60,904.54 : x - Step 2: Convert to fraction form
128,372.23/192,652.98 = 60,904.54/x - Step 3: Cross multiply
128,372.23x = 192,652.98 × 60,904.54 - Step 4: Simplify right side
128,372.23x = 11,733,441,126.53 - Step 5: Solve for x
x = 11,733,441,126.53/128,372.23 - Step 6: Final answer
x = 91,401.71
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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.