Finding the Fourth Proportional to 135,580.97, 187,108.62 and 78,198.95
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Solution
The fourth proportional to 135,580.97, 187,108.62 and 78,198.95 is: 107,918.52
Step by Step Solution
- Step 1: Write the proportion equation
135,580.97 : 187,108.62 = 78,198.95 : x - Step 2: Convert to fraction form
135,580.97/187,108.62 = 78,198.95/x - Step 3: Cross multiply
135,580.97x = 187,108.62 × 78,198.95 - Step 4: Simplify right side
135,580.97x = 14,631,697,619.95 - Step 5: Solve for x
x = 14,631,697,619.95/135,580.97 - Step 6: Final answer
x = 107,918.52
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.