Finding the Fourth Proportional to 135,881.49, 187,521.17 and 75,453.14
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Solution
The fourth proportional to 135,881.49, 187,521.17 and 75,453.14 is: 104,127.95
Step by Step Solution
- Step 1: Write the proportion equation
135,881.49 : 187,521.17 = 75,453.14 : x - Step 2: Convert to fraction form
135,881.49/187,521.17 = 75,453.14/x - Step 3: Cross multiply
135,881.49x = 187,521.17 × 75,453.14 - Step 4: Simplify right side
135,881.49x = 14,149,060,246.91 - Step 5: Solve for x
x = 14,149,060,246.91/135,881.49 - Step 6: Final answer
x = 104,127.95
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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.