Finding the Fourth Proportional to 162,309.95, 223,988.85 and 90,692.99
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Solution
The fourth proportional to 162,309.95, 223,988.85 and 90,692.99 is: 125,156.95
Step by Step Solution
- Step 1: Write the proportion equation
162,309.95 : 223,988.85 = 90,692.99 : x - Step 2: Convert to fraction form
162,309.95/223,988.85 = 90,692.99/x - Step 3: Cross multiply
162,309.95x = 223,988.85 × 90,692.99 - Step 4: Simplify right side
162,309.95x = 20,314,217,413.22 - Step 5: Solve for x
x = 20,314,217,413.22/162,309.95 - Step 6: Final answer
x = 125,156.95
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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.