Finding the Fourth Proportional to 157,634.99, 217,541.53 and 86,018.94
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Solution
The fourth proportional to 157,634.99, 217,541.53 and 86,018.94 is: 118,709.00
Step by Step Solution
- Step 1: Write the proportion equation
157,634.99 : 217,541.53 = 86,018.94 : x - Step 2: Convert to fraction form
157,634.99/217,541.53 = 86,018.94/x - Step 3: Cross multiply
157,634.99x = 217,541.53 × 86,018.94 - Step 4: Simplify right side
157,634.99x = 18,712,691,816.58 - Step 5: Solve for x
x = 18,712,691,816.58/157,634.99 - Step 6: Final answer
x = 118,709.00
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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.