Finding the Fourth Proportional to 132,719.04, 183,153.36 and 72,289.92
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Solution
The fourth proportional to 132,719.04, 183,153.36 and 72,289.92 is: 99,760.68
Step by Step Solution
- Step 1: Write the proportion equation
132,719.04 : 183,153.36 = 72,289.92 : x - Step 2: Convert to fraction form
132,719.04/183,153.36 = 72,289.92/x - Step 3: Cross multiply
132,719.04x = 183,153.36 × 72,289.92 - Step 4: Simplify right side
132,719.04x = 13,240,141,742.13 - Step 5: Solve for x
x = 13,240,141,742.13/132,719.04 - Step 6: Final answer
x = 99,760.68
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1.5x scale
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.