Finding the Fourth Proportional to 115,263.06, 171,993.11 and 91,299.06
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Solution
The fourth proportional to 115,263.06, 171,993.11 and 91,299.06 is: 136,234.53
Step by Step Solution
- Step 1: Write the proportion equation
115,263.06 : 171,993.11 = 91,299.06 : x - Step 2: Convert to fraction form
115,263.06/171,993.11 = 91,299.06/x - Step 3: Cross multiply
115,263.06x = 171,993.11 × 91,299.06 - Step 4: Simplify right side
115,263.06x = 15,702,808,812.98 - Step 5: Solve for x
x = 15,702,808,812.98/115,263.06 - Step 6: Final answer
x = 136,234.53
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.