Finding the Fourth Proportional to 132,623.68, 183,020.16 and 72,197.68
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Solution
The fourth proportional to 132,623.68, 183,020.16 and 72,197.68 is: 99,632.52
Step by Step Solution
- Step 1: Write the proportion equation
132,623.68 : 183,020.16 = 72,197.68 : x - Step 2: Convert to fraction form
132,623.68/183,020.16 = 72,197.68/x - Step 3: Cross multiply
132,623.68x = 183,020.16 × 72,197.68 - Step 4: Simplify right side
132,623.68x = 13,213,630,945.23 - Step 5: Solve for x
x = 13,213,630,945.23/132,623.68 - Step 6: Final answer
x = 99,632.52
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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.