Finding the Fourth Proportional to 132,815.68, 183,284.48 and 72,386.31
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Solution
The fourth proportional to 132,815.68, 183,284.48 and 72,386.31 is: 99,892.48
Step by Step Solution
- Step 1: Write the proportion equation
132,815.68 : 183,284.48 = 72,386.31 : x - Step 2: Convert to fraction form
132,815.68/183,284.48 = 72,386.31/x - Step 3: Cross multiply
132,815.68x = 183,284.48 × 72,386.31 - Step 4: Simplify right side
132,815.68x = 13,267,287,368.43 - Step 5: Solve for x
x = 13,267,287,368.43/132,815.68 - Step 6: Final answer
x = 99,892.48
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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.