Finding the Fourth Proportional to 92,305.12, 138,567.36 and 77,695.84
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Solution
The fourth proportional to 92,305.12, 138,567.36 and 77,695.84 is: 116,636.08
Step by Step Solution
- Step 1: Write the proportion equation
92,305.12 : 138,567.36 = 77,695.84 : x - Step 2: Convert to fraction form
92,305.12/138,567.36 = 77,695.84/x - Step 3: Cross multiply
92,305.12x = 138,567.36 × 77,695.84 - Step 4: Simplify right side
92,305.12x = 10,766,107,431.78 - Step 5: Solve for x
x = 10,766,107,431.78/92,305.12 - Step 6: Final answer
x = 116,636.08
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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.