Finding the Fourth Proportional to 135,806.63, 187,413.14 and 76,190.63
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Solution
The fourth proportional to 135,806.63, 187,413.14 and 76,190.63 is: 105,143.06
Step by Step Solution
- Step 1: Write the proportion equation
135,806.63 : 187,413.14 = 76,190.63 : x - Step 2: Convert to fraction form
135,806.63/187,413.14 = 76,190.63/x - Step 3: Cross multiply
135,806.63x = 187,413.14 × 76,190.63 - Step 4: Simplify right side
135,806.63x = 14,279,124,460.29 - Step 5: Solve for x
x = 14,279,124,460.29/135,806.63 - Step 6: Final answer
x = 105,143.06
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.