Finding the Fourth Proportional to 158,143.08, 218,237.97 and 86,522.88
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Solution
The fourth proportional to 158,143.08, 218,237.97 and 86,522.88 is: 119,401.86
Step by Step Solution
- Step 1: Write the proportion equation
158,143.08 : 218,237.97 = 86,522.88 : x - Step 2: Convert to fraction form
158,143.08/218,237.97 = 86,522.88/x - Step 3: Cross multiply
158,143.08x = 218,237.97 × 86,522.88 - Step 4: Simplify right side
158,143.08x = 18,882,576,598.56 - Step 5: Solve for x
x = 18,882,576,598.56/158,143.08 - Step 6: Final answer
x = 119,401.86
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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.