Finding the Fourth Proportional to 128,564.92, 192,971.76 and 62,051.87
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Solution
The fourth proportional to 128,564.92, 192,971.76 and 62,051.87 is: 93,137.84
Step by Step Solution
- Step 1: Write the proportion equation
128,564.92 : 192,971.76 = 62,051.87 : x - Step 2: Convert to fraction form
128,564.92/192,971.76 = 62,051.87/x - Step 3: Cross multiply
128,564.92x = 192,971.76 × 62,051.87 - Step 4: Simplify right side
128,564.92x = 11,974,258,565.19 - Step 5: Solve for x
x = 11,974,258,565.19/128,564.92 - Step 6: Final answer
x = 93,137.84
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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.