Finding the Fourth Proportional to 132,641.68, 183,047.86 and 72,214.08
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Solution
The fourth proportional to 132,641.68, 183,047.86 and 72,214.08 is: 99,656.71
Step by Step Solution
- Step 1: Write the proportion equation
132,641.68 : 183,047.86 = 72,214.08 : x - Step 2: Convert to fraction form
132,641.68/183,047.86 = 72,214.08/x - Step 3: Cross multiply
132,641.68x = 183,047.86 × 72,214.08 - Step 4: Simplify right side
132,641.68x = 13,218,632,805.87 - Step 5: Solve for x
x = 13,218,632,805.87/132,641.68 - Step 6: Final answer
x = 99,656.71
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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.