Finding the Fourth Proportional to 131,718.99, 181,772.24 and 72,102.99
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Solution
The fourth proportional to 131,718.99, 181,772.24 and 72,102.99 is: 99,502.14
Step by Step Solution
- Step 1: Write the proportion equation
131,718.99 : 181,772.24 = 72,102.99 : x - Step 2: Convert to fraction form
131,718.99/181,772.24 = 72,102.99/x - Step 3: Cross multiply
131,718.99x = 181,772.24 × 72,102.99 - Step 4: Simplify right side
131,718.99x = 13,106,321,642.48 - Step 5: Solve for x
x = 13,106,321,642.48/131,718.99 - Step 6: Final answer
x = 99,502.14
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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.